HomeMy WebLinkAbout1.0 Application:Dep 1 c ULi Li4: USp t'r i
ii,
O C e, . r
., r t::5-1159 p•?
•RECEIVEc, SEP 2 6 2002
Sketch Plan X
Preliminary Plan
Final Plat
SUBDIVISION APPLICATION FORM
"
SUBDIVISION NAME: Juniper Hills Subdivision
OWNER: Linda Craig, 0918 County Road 352, Rifle, CO 81650.625-8744
ENGINEER/PLANNERS URVEYQR:
Engineer: Nichols and Associates, Inc. c/o Tern, Nichols. PE, 751 Horizon Cowl
Suite 102. Grand Junction, CO 81506, (970) 245- 7101
Planner: Development Concepts, Inc. c/o Mike Joyce, AICP, 2764 Compasi I !rive.
Suite 217-4, Grand Junction. CO 81506, (970) 255-1131/Fax (970) 255-
1159/Cell (970)260-1466, e-mail: yobubba4)gict.net
Surveyor: G.O. Metrix Surveying Mapping c/o Mike Sorenson. PLS, 0076 Rold
332, Rifle, CO 81560. 625-0736
LOCATION: Section 35 Township 6S Range 93 W
WATER SOURCE: Two Water Wells & Storage Tank on Subject Property
SEWAGE DISPOSAL METHOD: Individual Sewage Disposal Systems (ISDS)
PUBLIC ACCESS VIA: Access to all 6 -lots is proposed from Gage Road., which is an
existing 15 -foot wide private gravel road. Gage Road intersect with Garfield County Road: 19.
In order to provide access for Gage Road to the subject property, a "Dedication of Road Rig it -of_
way" was dedicated from Benzei Livestock Company. This dedication is recorded as "G<.gr..
Road. Segment No. 1, Document Recorded 10 Mav 1994, Dallas County, Texas," A copy is
attached to this General Project Report. Also attached to the General Project Report is th,.
"Garfield County Application for Driveway Permit " (Permit Number 229-0() D1 for Gage P J a ,_
EXIS'T'ING ZONING: Agricultural/ Residential/Rural Density (A/RRD)
EASEMENTS: Utility As shown on Sketch Plan
Ditch
TOTAL DEVELOPMENT AREA:
(1) Residential Number Acres
Single Family/Mobile Home 6 71.18
Duplex 0
Multi -family 0
(2) Commercial Floor Area Acres
(3) Industrial Sq. ft.
Sq. ft.
(4) Public/Quasi-Public
Sep 12 UUU'h:U`.�p MI ly JCaGe, AiUH
970-255-1159
4111
(5) Offen Space/Common Area
TOTAL: 6 71.18
PARKING SPACES:
Residential: 4 per lot or 24 total
Commercial
Industrial
P P. 3
P
Develop menConce ts, Inc.
Planning and Development Services
2764 Compass Drive
Suite 217-1
Grand Junction, CO 81506
Introduction
v• -
RECEIVED SEP 1 2 2000
,L
Office - 970 - 255-1131
Fax - 970 - 255-1159
email - yobubba @ gjct.net
Juniper Hills Subdivision
Sketch Plan
E '/z, NW' & N'/2 SW'/a of Section 35, Township 6 South, Range 93 West
of the 6th Principal Meridian, Garfield County, Colorado
Owner/Developer; Linda Craig
Gage Road, Garfield County, CO
71.18 -acres
Submittal Date:
September 12, 2000
he proposed subdivision is located in the E 1/2, NW Vi & N'/2 SW !% of Section 35, Township 6
TSouth, Range 93 West of the 6th Principal Meridian, Garfield County, Colorado, on Gage Road,
The subject property is currently undeveloped. Land -use in the surrounding area include large lot
residentially subdivided land, which contain single family dwelling units, vacant land, and accessory
agricultural land uses. The property is currently zoned Agricultural/ Residential/Rural Density (A/R/RD)
by Garfield County.
The owners, mineral rights owners, consulting planner/designer, professional land surveyor, and
professional engineer of the subject property are as follows:
Owner/Applicants: Linda Craig
Address: 0918 County Road 352, Rifle, CO 81650
Phone: 625-8744
Mineral Rights Owners: Linda Craig - '/2 interest
Address: 0918 County Road 352, Rifle, CO 81650
Phone: 625-8744
Slade Estate Trust - '/2 interest
c/o Ballard Petroleum
No address available
Planner/Designer: Development Concepts, Inc. c/o Mike Joyce, AICP
Address: 2764 Compass Drive, Suite 217-4, Grand Junction, CO 81 506
Phone: (970) 255-1131/Fax (970) 255-1159/Cell (970)260-1466
e-mail: yobubba@gict.net
Juniper Hills Subdivision
Sketch Plan
General Project Report
Submittal Date: September 12, 2000
• •
Surveyor: G.O. Metrix Surveying Mapping c/o Mike Sorenson, PLS
Address: 0076 Road 332, Rifle, CO 81560
Phone: 625-0736
Engineer: • Nichols and Associates, Inc. c/o Terry Nichols, PE
Address: 751 Horizon Court, Suite 102, Grand Junction, CO 81506
Phone: (970) 245- 7101
Project Description
This submittal proposes a sketch plan for a 6 -lot subdivision on a 71.18 -acre s. The 71.18 -acres
are currently configured into two 35.59 -acre parcels. This equates to a gross density of 1 dwelling unit
per11.86-acres for the 6 -lots proposed. Proposed lot sizes are:
Lot 1 18.48 -acres Lot 4 11.66 -acres
Lot 2 8.49 -acres Lot 5 11.46 -acres
Lot 3 8.61 -acres Lot 6 12.47 -acres
The proposed individual lots will contain residential structures and any allowed accessory structures in the
Agricultural/ Residential/Rural Density (A/R/RD) zone. No non-residential floor space, other than for accessory
agricultural uses, will be allowed in the subdivision. Table 1 is a land -use breakdown of the subject property.
Table 1
Land Use Breakdown
Juniper Hills Subdivision
Existing Zoning - No change is proposed
Agricultural/ Residential/Rural Density (A/R/RD) zone
Total Development Acres
77.1 8 -acres
Total Number of Lots Proposed
6
Total Number of Dwelling Units Proposed
6
Total area of non-residential floor space
0 square feet, except for accessory agricultural uses
Total number of individual dwelling units
proposed for each structure
1
Total Number of proposed off-street
parking spaces
4 per lot - 24 total
Total Proposed Density
1 dwelling unit per 1 1 .86 -acres
Supplemental Information
The following Supplemental Information is required to be submitted for review in Section 3:40 of
the Garfield County Development Code.
Juniper Hills Subdivision
Sketch Plan
General Project Report
Submittal Date: September 12, 2000
2
• •
Source and Amount of Water Supply
Nichols and Associates of Grand Junction is the engineer for the project who has designed the
potable water supply for the proposed subdivision. A Water Plan has been submitted with this Sketch Plan
application. Two (2) water wells are proposed to be drilled to supply water to the subdivision. A storage
tank is to be built on a high point located on Lot 3 er usage is estimated at 100 gallons of water per
person per day, or a total o a ons (based o persons per household).
Proposed Type of Sewage Disposal
The proposed type of sewage disposal is Individual Sewage Disposal Systems (ISDS). These
systems will require permits through the Garfield County Health Department. Percolation tests will also
be required to determine if the ISDS systems will need to be engineered.
USDA Soil Conservation Service Soil Designations
A United States Department of Agriculture and Soil Conservation Service (aka the Natural
Resource Conservation Service - NRCS), in cooperation with the Colorado Agricultural Experiment
Station, report titled, Soil Survey of Rifle Area, Colorado - Parts of Garfield and Mesa Counties (1979) indicates 3
soil types, 4 — Arvada Loam, 6 to 20 percent slopes, 51 -- Olney Loam, 6 to 12 percent slopes, and 67 —
Torriorthents-Rock Outcrop Complex, Steep, make up 100% of the proposed subdivision. A detailed soils
report prepared from the Soil Survey of Rifle Area, Colorado - Parts of Gaeld and Mesa Counties has been
submitted with this application. Although this report indicates that these soils have development
limitations, most soils found in Garfield and Mesa Counties have limitations which requires mitigation of
either engineered foundations, or use of sulfate resistant concrete.
Possible Subdivision Impacts to Lakes, Streams and Topography
The proposed subdivision will have limited if any possible impact to lakes, streams, and the
topography of the subject property. The subject property is very dry. No lakes are located within the
drainage basin of the proposed subdivision.
Two small intermittent drainages do flow through the subdivisions. The location of these 2
drainages are noted on the Sketch Plan. No evidence of any past flooding with these two drainages are
found on the subject property.
The topography for the most part is considered steep. All lots have adequate building areas for
dwelling units to be placed in areas of less than 30% slopes. As noted in the soils section, the two major
soil types, 4 — Arvada Loam, 6 to 20 percent slopes, 51 -- Olney Loam, 6 to 12 percent slopes, have
slopes between 6 and 20%.
Potential Radiation Hazards to the Site
A report assessing any potential radiation hazards on the subject property has been ordered and will
be submitted prior to the hearing on this application. The purpose of this requirement is to allow the
County to evaluate the nature and extent of any potential radiation hazards on the property. This report is
Juniper Hills Subdivision
Sketch Plan
General Project Report •
Submittal Date: September 12, 2000
3
expected to indicate that no radiation, other than allowed background levels, \will be found on the
property.
Access to a Public Right-of-way
Access to all 6 -lots is proposed from Gage Road., which is an existing 15 -foot wide private gravel
road. Gage Road intersect with Garfield County Road 319. In order to provide access for Gage Road to
the subject property, a "Dedication of Road Right-of-way" was dedicated from Benzel Livestock Company.
This dedication is recorded as "Gage Road, Segment No. 1, Document Recorded 10 May 1994, Dallas
County, Texas." A copy is attached to this General Project Report. Also attached to the General Project
Report is the "Garfield County Application for Driveway Permit " (Permit Number 229-00 D) for Gage
Road.
Utility Providers
The proposed subdivision has the following utility and public services available. The providers are:
Potable Water: Two Water Wells & Storage Tank on Subject Property
Sanitary Sewer: Individual Sewage Disposal Systems (ISDS)
Electric Service: Public Service
Natural Gas: None Available - Propane tanks proposed to be used
Telephone: Qwest
Cable Television: None Available
Police: Garfield County Sheriff
Fire: City of Rifle Volunteer Fire Department
Conclusion
The Juniper Hills Subdivision meets the requirements for a Sketch Plan approval of Section 3:00
of the Garfield County Development Code. We respectfully ask your approval of the Sketch Plan for the
Juniper Hills Subdivision for 6 dwelling units on 71.18 -acres.
Juniper Hills Subdivision
Sketch Plan
General Project Report
Submittal Date: September 12, 2000
4
DEDICATION OF ROAD RIGHT-OF-WAY
BENZEL LIVESTOCK COMPANY, being the owner of all of the following described real
property, does hereby dedicate the same to the public for its general use and benefit for roadway
purposes:
An Access Easement for ingress to and egress from the E1/2NW1/4
and the N1/2SW1/4 of Section 35, Township 6 South, Range 93 West,
Zith P M maid easem t3eing-60-fe in with and lying 30 feet on
either side of a centerline more particularly described as follows:
Beginning at a point on the centerline of Garfield County
Road No. n7.n (West Ja;Creek Road), 1.1n,_C .N1 r•h
Quarter Corner of said Section 35 bears N. 51°05'14" W. for a
distance of 433.94 feet; thence S. 64°20'58" W. for a distance of
374.57 feet to a point on the east line of the NW1/4 of said Section
35, whence the North Quarter Corner of said Section 35 bears
North for a distance of 434.72 feet.
Said easement contains 0.516 acres (22,474 sq. ft), more or less.
By making this dedication, BENZEL LIVESTOCK COMPANY..disclaims any duty or
obligation to open the property described in Exhibit A hereof as a roadway, or for main enance
a- . • • soever p- o i e same. This dedication is by quit claim
only and no warranties,. express or implied, are given and any and all water or water rights
which may be attached thereto are hereby reserved for the use and benefit of the Grantor on
other lands owned by it.
IN WITNESS WHEREOF, the undersigned has hereunto set its hand and seal this
//) - day of May, 1994.
• STATE OF TEXAS
ss.
COUNTY OF DA //. -
BENZEL LIVESTOCK COMPANY
By
Joanne Grant Berke, General Partner
The above and foregoing instrument was acknowledged before me this /0 day of
May, 1994, by Joanne Grant Berke as General Partner of Benzel Livestock Company.
1.
LaNell S. Crumpler
Notary Public,
State Of Texas
Commission E. pines 8-13-96
4
:/•%I' ::mac/ . 'S .44q/ :!' •.
My commission expires:
Notary Public
//, r 74 7 2-2_ 3 c>
�'-/3-y6
• •
LEGAL DESCRIPTION FOR ACCESS EASEMENT
An Access Easement for ingress to and egress from the E1/2NW1/4 and the N1/2SW1/4
of Section 35, T. 6 S., R. 93 W., 6th P.M., said easement being 60 feet in width
and lying 30 feet on either side of a centerline more particularly described as
follows:
1. Beginning at a point on the centerline of Garfield County Road No. 319 (West
Mamm Creek Road), whence the North Quarter Corner of said Section 35 bears
N. 51 05'14" W. for a distance of 433.94 feet.
2. Thence, S. 64`20'58" W. for a distance of 374.57 feet to a point on the east
line of the NW 1/4 of said Section 35, whence the North Quarter Corner of
said Section 35 bears North for a distance of 434.72 feet.
3. Said easement contains 0.516 acres (22,474 sq. ft.), more or less.
Date: %W2p, ao2 / 9 9
Job No. 94-033
Page 1 of 2
Starbuck .Surveyors and Engineers
205 E. Chambers Ave., Box 1584
Eagle, Colorado 81631-1584
303/328-7208 Eagle Office
303/625-3913 Rifle Office
• •
( A R F T F t.
I District: III
I Road: 319
I Permit #: 229-00 D
c:(71NTy
APPLICATION FOR. DRIVEWAY PERMIT
Applioatton Date 04-18-Ace:JO
T, LINDA rRATG (herein oallO "Applicant"), hereby requests
permlssion and authorAty from the Boar:.! of County Commissioners to oonstruot a
drtvew,” appraoh(ea) )71 t.he rioht-of-way of Garfield County Road Number 319
erljAent to Appint's ppr Mooeted on the WEST slde of the
of 7 mile(s) from !;n1ITH OF TNT cP 319 &3F..‘2 for the purpoT,;e of
ohtAn5_no to DRTVFWAY
Appltcant submits herewith for the nonsideration and approval
of the Board of County Ci7mmiloners, a s'Ketch of the proposed instal-
lattoh nhowtnn all n,,•rY spen:;fAti.on HPtail Including (1) front-
ene of 1ot elorn r -id. (7!) rqstano.e from r:enter7ine of road to
nrnnertv (3) numbt::r of drivvs rested, (4) width of nr-
1.7verl rrvewy.W ar,d of E'trr.;rF1(-h. HI-itance from eirveway
ty-) rort intersenn, if Anv, (6) 77.17.c, ..-thApe of area spoaratind
driveways if more than One :-,orn4:“7:h. and (7) sethack distanoe of
buildtnd(s) r-ir other .7f.roo:tnres or imnrovAmert.F..
r N E 9 A I. RnV 7S T. 0 N s
FTPST: The Appli.oant repre.F„ents all pertes in interest, and affirms
rit*vew.A.y to hA cnnstructed by h&rn for the
bona fide purpose of securing access to his property and not for the
pur.pose doinr!, business or servicinn vehiles on the road r5oht-of-way.
SFr:CM: The Applie.nt flirrish ail labor and materials, perform
all worY, and all r::osts ccrnecnn with the co' Df the
driveway(s) and s apptanc,es on thc. ridht-f-wAv. All work shall
be co?npleted rv':f the PE.rt
THTRn: The type of o-.)otr!ktior he s de..,,Ignated approve::.
hy the Board 'of r.00ntY0 their representative, ;i1n:1 all
materials used shall be of sattsfaotorY ouelity rHsubjeot to inspec-
tinn rdaPrrovl of the fl::(:f CoHnty thp,ir
representative.
PC!)RT: The traveling InWniir shall he proter:ted durjncl th.e in,-,ta1-
'1.70-1.0n with nrorier And the goArd of (cinty
rommilon.rs t,'lr- eppontel she17. ".‘7
heTd harmless against 7-iryantion r-orsOhel ry property
damale suStiher'. !nY rr.1FAh cf t.he P --Tit-
•
SPFC:TPTr.
T T /1
1, A drivewev aPproech is understood to be that portion of the hidn-
way right-of-way between the pavement edge and the property line which
is desioned and used fpr the interchange of traffio between the road-
wAy nevement and the ehuttino property.
2, At. my interseotion, driveway shall h€ restricted for a suf-
fi.ciPnt distance from the interseetion to preserve the normal and safe
movemeet of traffic. (Tt is recommended for reral reeidence entrances
that A mini_MIIM i_ntarsPCtion cleerance of 50 feet he provided And for
rural onmmereial RntrAnc.:eS A minimm of 100 feet be provided,)
3, All entrances and exits shall be so located and constructed that
vehicle.; arnrclak)Ning or using them will he able to obtain adenuate
sight distanoe in hoth directions along the highwey in order to maneuver
safelY and withol:t. interfering with highway treffin.
4, Tt.p Arinlie:Ant shall not he permitted to erect any sinn or display
material: rl'ther fixed or moveble, on or AXtAndiog ovi'r AfV,, nortinn
of the highway right-of-waY,
rienerally, no more than one anproaoh shl1 he allowed AnY parcel
or property the frontage of which is less than one hundred (100) feet,
Additional Pntranoes or ex:. te for Percels or prorierty having A frontage
in excess -f one hundred (100) feet shall he permitted only efter
'.howi r fAotual cenvenience and necessitY,
6, All ririVAWaYs shall he so located that the flared nortion adjacent
to the tra.,,r1Pd way Will not. Pncroach upon adjoining rxnpArty,
7, No oommerci.al driveway shall have a width greeter than thirty (80)
feet meeeured At ria angles to the centerline of the drivewev. extent
inoreased by oermissible radii, No noncommercial drivewey shall
have a width greater than twenty (20) feet measured at ri_ght angles to
the oenterline of the driveway; exPeot as increeeed by permissihle radii
8. The axis of An approech to the road MAY be at A right annle tO the
centerline of the highway anti of any angle hetween ninPtv (90) degrees
plr.11 i n) degreeF hut shall not he less then siXty (60) deorees.
Aciv.trurt'will he mede according to Ole type of traffic to he served
end ether phY,3ioal conditions,
9, - The r:nn;trnCtinn of parking or servioing arees on the highway
right-of-wey le specifieelly prohibited. Off -the -road perking facil-
ities should be nrovi.ded by onmmerciel establishments for ollstomers"
vetOcles.
10. Th P nrede of entrance and exit shell slope downward end away from
the roed surfeee at the ;erne rate as the normel shnelder slope and for
a HistP4hc: elHA1 to the width of the but ri ri. le';':; than
twenty (70) feet from the pavement edge. APproech gredes Are restricted
to not mere than ln percent (Int),
11, All cirivr-WayS and approa,Thes shall be so constructed that they
shall not interfere with the drainane syetem of the s'treet or highway.
The Applicant will he required to provide, et his own expense. cirjrl-
ge strnn.t!ires ,z1t, entrances and exits which will hecome en inteorel
pert of the existing dreineoe system, The dimensions of all drainagP
structure", must he approved hv the Board of County rommissi.oners or
their 'PnrAsAntati.ve prior to instelletion,
NOTE: Thjs peft-mit he made aveilahle et the site where end when wor/ is
heing done. A sketc:h or drewing of the propesed drivewey(s) must aceompen.
APPlioation. No nermit will he issued WithOnt draWinrl hlueprint. or skFth_
<+> GARFTELD COUNTY ROAD & BRIDGE DEPARTmPmr
SPECIAL PROVISIONS FOR EXCAVATION OF ROAD SURFACE AND INSTALLATION
PERMTT #: 229-00 0 PERMTTTEE: LINDA CRAIG
INSPECTOR:
SUB -CONTRACTOR:
1) ANY OVERSIZED MATERIAL (LARGER THAN 10 INCHES IN DIAMETER), THAT
IS NOT UTILIZED IN BACKFILL WILL RE HAULED OFF BY PERMITTEE. FHRTHFR.
ANY FROZEN MATERIAL WILL BE REMOVED FROM SITE BY PERMITTEF,
2) WHEN A PAVED OR CHTPPED SURFACE IS CUT, TT IS TO BE REPLACED WITH
A MINIMUM THREE INCH (3") HOTMIX ASPHALT PATCH, A TEMPORARY PATCH WITH
COLD MTX ASPHALT WOULD RE ALLOWED, WHICH WOULD BE REPLACED WTTH HOTMIX
ASPHALT WHEN THE WEATHER OR AVAILABTLITY OF MATERIALS ALLOWS THE WORK
TO RE COMPLETED, AN ASPHALT OR CHIPPED SURFACE CUT wOUtil REQUIRE THF
ROAD TO BE STRAIGHT CUT AND SQUARED BY MEANS oF A PAVEMENT ruTTER OR
SAW- A CHIPPED SURFACE CUT WILL REQUIRE A SEAL COAT OF THF PATcH WHICH
WILL BE FULL WIDTH OR HALF WIDTH OF ROADWAY WHEN TRENCHES RUN WTTH THE
ROAD, FOR TRENCHES ACROSS THE ROAD, THE. EDGES OF THE SEAL COAT WILL
OVERLAP THE EXISTING EDGE, ALL SEALCOATS WILL OVERLAP EDGES BY A TWO
FOOT MINIMUM TO INSURE AN ADEQUATE SEAL OVER THE UNDISTURBED PORTION
OF THE ROADWAY IN THE VICINITY OE THE EXCAVATION, APHALT HOTMIX OR
COLD PATCHES WTI.L RE COMPLETED IN A MAXIMUM OF FIVE WORKING DAys,
WEATHER PERMITTIN(3,
3) WHEN POSSTRLE ALL TNSTALLATTnN SHoUtO AVOID THE TOP EDGE Or A PILL SLOPE.
4) 'INSTALLATIONS TN DRAINAGES SUBJECT TO FLASH FLOODIN(, WILL HAVE A MINIMUM
BURY OF 4 FEET DEEPER THAN NORMAL FtOW LINE AT NEAREST ABUTMENT, WINGWALL,
OR CULVERT,
5) INSTALLATIONS AT CULVERT CROSSINGS WILL RE BURIED BENEATH THF CULVERT
WTTH A MINIMUM SEPARATION OF 18 'INCHES RFTWEEN INSTALLATTON AND THF
BOTTOM OF THE CULVERT.
6)- OPEN TRENCHES ADJACENT TO THE TRAVELED ROADWAY SHALL RE BACKFILLED
DATly TO WITHIN 100 OF THE WORKING AREA OF THE TRENCH, AND SHALL RE
BARRICADED WITH WARNING DEVICES AFTER DARK, A 3 FT, HIGH ORANGF PLASTIC
FENCE WILL BE INSTALLED DAILY TO KEEP 1IVESTOCK OUT Or THE OPEN TRENCH
AFTER HouRS,
7)
IN AREAS BEING -DISTURBED WHERE VEGETATION IS ESTABLISHED, RESEEnING WTTH
A MIXTURE EITHER BY BROADCASTING, DRILLING, AND MULCHING WTTH SEED MIXTURES
SUITABLE TO THE CLIMATIC CONDITIONS OR EXISTING VEGETATION WILL BE
PERFORMED, USE ONLY CERTIFIED WEED-FRFF SEED, NOYINIS WEED CoNTRoL
WILL BE ONGOING ALONG WTTH REvEGETATTON,
8) THE PE UTE SHoULD CHECK THE R -O -W OF SURRoUNDING LANDOWNERS
FOR
TO SE F HER PERMITS ARE REPUIRED, T,E., BLM, FOREST SERVICE,
RFTELD OUt
c
BY LINDA CRAM
If (PERMITTEE)
• •
FTFTH: The Ann1 ).t;.. nt shall assume resn,-nsih! it'y for the rBii nvA,1
ZAa ranc;r= of 1 c':P. fir 'z1.6?t?.f'. upon r',ny Portion of the. driveway --
r,i c) - h (c ) even tF oi,i,ih dr^.ris1 d on the di waV ) in the C. o . . : r of
the rountv snow r=?mOV= 1. (lrif?r a t i .':r'.
STYTH: Tr `.hi?
r i - _ +' �+ a • ?. t ' on rt . i i e' _ ..t E... of t• h., a:: n t• ` r•'. i _ . y 1 :=i 1 .. he e i , 1' 'y'
L.. .,=t ? "! {'t ^•.'� :'9 ' t. t': f �' f .. n r F? v P a .-y r' ' cam; ;- i. s:; of t h•,111 c • t . :r r' ^/, w?re i i?rnc ^r! = i ? h- tuned to the
R o ..► s 1 I r) ' e•' U r `^ r'. j e of (i:, t
S E 4r i7 N T . N1,7: i" 'I \r' i': r': i : i ^: f 1 ;•'! t {. i i" ; ~ i', i. 1. 'IR made to t'. h i;'• di .' a 4., a V C :} )
nrIts ennurtPtlarlc;E'?". on thR 1:-1;.+_i f_W V i t'.hcml- the Wrl ttr'!rt i -
Irri of the P'-,ard of rot,,, ri.)::flmf;:ss5One=_.i",
r 7nHTH. nr:,'�'' iii!:-. �: .rl "�i7 r?s } f� �'t �) o 't 1 i i2=.:;,, i i.`-�,rf?';h 1.1 a 2r i.y' on
17 r i)ptr1'_ r.f�: theli�iT ,'�i .t �i :-'1 ,:I the FIi., ..r:-/: i,F ^.-,le a -,r ii: „("�icfji
,-L ri,-:"fes r'.l :� :.iiil.rs}.i' �.C1 tC',. - '=.i) •J f•a'. _ •s}l ?f.'' 1 �.�? L. .,'� .,c•• �,.s� J.. r_h on the
•F*-,^..t.f� };pre')f and 1n-.i1i....sci• .t l d hi=.j '? ri i?.'.. conditions hereof:
�, F r r n T. T T () I
PF SP;-.) dSTR E. FC'R --'a!:7) YEARS F f CM T'Ar Cr. CCP! F.'_(,A
5 I•. 1(i ^ P r� V H n,^� r-, — - :-� a, : •� i 11 n -� e !, . F
i � F t . ,. T . 1 . . 1.• .. l r , J . � . � . 1 ••F tl i.' •, , 7 t-•. , i
Trt si. - r. rt (l rc-f. eiv'i rti" Ziithor. .1... -. L ...orand
.,.s e.: ; ' m i. i. f : f rl to install th e r r i v P tw' e V i, i e s s;.: her it ,`y,•. r . t; h P,.
Ain11oant .lr7rti.fiFs t•t- `1e ='ti re=arl, understands anis accepts the
fcr'?r'cli.rin provIsi.ons and oonditions and aorees to rr,rl.itru t. the it t,ve-
'at:3Y(s) in 3(r-orriRn;-:e with thR ;cC;`,i mpanvnn •;) Ol_fic'rat;Ion plan reviewed
and approved by the an,;., -.-i of County Comiil.i'-.>A7nerc.,
4,itne .. Signed:
P F?MTT GRANTFfl TkTS
PSfl\/T STINS. SPFt'TFTfATTCin,c.
For R^ •'
()AY
r•
IAM*
() f r'.ni ri t J
(gi,egn t.i.1.i.e of Anrl1•. nt)
(Address)
Tp
er)hone Number)
/
� ! E r ;':T To THE
nr,1 S TPUI ATFfl HFRFTN
nmmi f)iir _ ',s t:f i f) , c ^tl .•t'v'. 7:01s7i" cd.,
CRAIG •
GL
FORT COLLINS
*I
'.NWOOD SP
GRAND JUNCTION
•
•
DURANGO
STERLING
•
DENVER
L •
COLORADO SPRINGS
*TRINIDAD
•
SPRINGFIELD
* State Agricultural Experiment Station
Location of Rifle Area in Colorado.
• •
SOIL SURVEY OF RIFLE AREA, COLORADO
PARTS OF GARFIELD AND MESA COUNTIES
By Jerry B. Harman and Donald J. Murray
Soils surveyed by Jerry B. Harman, Donald J. Murray, Tom S. Bargsten, Steve C. McWilliams,
Michael L. Petersen, and William P. Tripp, Soil Conservation Service
United States Department of Agriculture, Soil Conservation Service, in cooperation with the
Colorado Agricultural Experiment Station
RIFLE AREA, parts of Garfield and Mesa Counties, is
along the Colorado River in northwestern Colorado (see
map on facing page). Approximately 99 percent of the
survey area is in Garfield County, and the rest is in
north -central Mesa County. The survey area covers
629,860 acres, or 984 square miles.
General nature of the area
Rifle Area consists of broad foothill valleys, narrow
mountain valleys, high rolling plateaus dissected by
steep canyons, and high mountains. Elevation ranges
from 4,950 feet near Grand Valley in the western part of
the survey area to 10,600 feet on the top of Sunlight
Peak in the southeastern part. The survey area extends
approximately 48 miles east and west and varies in width
from 6 to 27 miles.
The Rifle Area and its principal cities of Glenwood
Springs and Rifle are known for year-round outdoor rec-
reation and related services and trade. Important among
the other economic resources of the area are crops,
livestock, and minerals.
History and development
The Rifle Area was one of the oldest gathering places
for the Ute Indian tribe. They hunted in the valley and
surrounding mountains and camped at the east end of
the area near Yampah Hot Springs.
The first explorers to enter the Rifle Area were Friars
Escalante and Dominguez in 1776. In 1860, Captain
Richard Sopris and his party entered the valley from the
east (10).
In 1881, the Ute Indians were placed on reservations
and the United States Government opened western
Colorado to development. Emigrants chose most of this
area as a good location for farming and ranching (4).
The first homestead of 160 acres was filed for in 1880,
near the present site of the city of Rifle.
In 1883, Garfield County was established. Grand
Springs, which was established and renamed Glenwood
Springs in 1885, was the permanent county seat. Settle-
ment of the area proceeded rapidly. New Castle, Silt,
Rifle, and Grand Valley were established within a few
years.
Agriculture was the main factor in development and
settlement in Silt, Rifle, and Grand Valley. Fruit crops,
small grains, a variety of vegetable crops, and hay were
grown initially in the area. With the coming of the railroad
in 1890, Rifle became a major livestock shipping center.
Although very little livestock is shipped by rail now, this
area still depends largely on livestock production.
Mineral production and speculation has influenced the
development of the Rifle Area. Coal, vanadium, and ura-
nium were mined. A very productive natural gas field was
developed in the south-central part of the Area. Oil shale
deposits were first examined and reported to be a poten-
tial source of oil about 1915.
Excellent hunting, fishing, hiking, swimming, and skiing
make this area a year-round recreation center. In 1890,
the waters of the Yampah Hot Springs were harnessed
and developed into a swimming pool and vapor cave.
The Glenwood Springs area has been a major tourist
attraction since.
Glenwood Springs and Rifle are the largest cities in
the Area. Glenwood Springs (fig. 1) has a population of
5,688, and Rifle has a population of 2,600. West Glen-
wood, an unincorporated area just west of Glenwood
Springs, has a population of 1,840. Grand Valley has a
population of 525, New Castle has a population of 656,
and Silt has a population of 966. The rural population of
the Rifle Area is 5,254.
1
2
Physiography, drainage, and relief
The Rifle Area is in the central part of the Southern
Rocky Mountains. In general, the greater part of the area
consists of high mountains, plateaus, foothills, and
narrow valleys. There are some relatively broad flood
plains and valleys. Some small mesas have a deposit of
silty loess over old river terrace cobbles and stony basal-
tic outwash.
Elevation within the Rifle Area varies from approxi-
mately 4,950 feet above sea level along the Colorado
River in the western part of the Area to 10,600 feet on
the high mountains in the southeastern part. The eleva-
tion of Rifle, along the Colorado River in the central part,
is 5,345 feet. Glenwood Springs, along the Colorado
River in the eastern part, is at 5,763 feet. Elevations
increase sharply on either side of the Colorado River
valley.
The Colorado River flows in a westerly to southwester-
ly direction through the Area. The Roaring Fork River
drains the eastern part of the Area, and many creeks
drain the western part (fig. 2). The most important creeks
are South Canon Creek, Divide Creek, Mamm Creek,
Beaver Creek, Porcupine Creek, Battlement Creek, and
Alkali Creek, all on the south side of the Colorado River
and Oasis Creek, Mitchell Creek, Canon Creek, Elk
Creek, Government Creek, and Parachute Creek on the
north. Many intermittent drainageways also flow into the
Colorado River. The tributaries on the north side of the
river drain the high mountains and plateaus. The Flat
Tops in the northeastern part of the Area are primarily
sandstone and limestone. They are high, rolling moun-
tains cut by narrow, steep canyons and well defined
drainageways. The Roan Plateau dominates the land-
scape in the northwestern part of the area. The plateau
consists of rolling to steep mountainsides and well de-
fined narrow mountain valleys and drainageways. Ex-
tremely steep canyons and cliffs exposing the Green
River Formation are along Parachute Creek and its tribu-
taries. Underlying the Green River shale are exposures
of multicolored, silty Wasatch shale.
The major creeks on the south side of the Colorado
River drain the Battlement Mountains, the Divide Creek
Valley, and the high mountains south of Glenwood
Springs. The Battlement Mountains consist primarily of
Green River shale and the underlying Wasatch shale.
The Divide Creek Valley is an area of low lying fans,
ridges, and mesas of mixed shale, sandstone, and basal-
tic alluvium. Reddish silty loess has been deposited over
most of this valley. The mountains south of Glenwood
Springs are mixed sandstone and shale with a basalt
cap in many areas. The mountains are steep and have
narrow valleys and well defined drainageways.
The Colorado River Valley varies in width from 1/2 to
2 miles. It consists of nearly level flood plains and low
terraces. The water table fluctuates between depths of
less than 10 inches and more than 60 inches.
SOIL SURVEY
Adjacent to the valley are higher lying terraces and
mesas. The best irrigated soils in the area are on these
terraces. The terrace soils are normally well drained, and
deep over cobbles and gravel. The mesas normally have
a deep deposit of reddish silty loess over cobbles and
gravel. Slope on these terraces and mesas ranges from
nearly level to gently sloping and rolling.
Climate
In Garfield County, summer is warm or hot in most
valleys and much cooler in the mountains. Winter is cold
in the mountains. Valleys are colder than the lower parts
of adjacent mountains because of cold air drainage. Pre-
cipitation falls in the mountains throughout the year, and=
a deep snowpack accumulates during winter. Snowmelt
usually supplies much more water than can be used for
farming.
In valleys precipitation in summer falls as showers;
some thunderstorms occur. In winter the ground is cov-
ered with snow much of the time. Chinook winds, which
blow downslope and are warm and dry, often melt and
evaporate the snow.
Table 1 gives data on temperature and precipitation in
the survey area, as recorded at Rifle, from 1951 to 1974.
Table 2 shows probable dates of the first freeze in fall
and the last freeze in spring. Table 3 provides data on
length of the growing season.
In winter the average temperature is 25.5 degrees F,
and the average daily low is 12.0 degrees. The lowest
temperature on record, -38 degrees, occurred at Rifle on
January 12, 1963. In summer the average temperature is
67.3 degrees, and the average daily high is 86.6 de-
grees. The highest temperature, 101 degrees, was re-
corded on July 11, 1954.
Growing degree days, shown in table 1, are equivalent
to "heat units." Beginning in spring, growing degree days
accumulate by the amount that the average temperature
each day exceeds a base temperature (40 degrees F).
The normal monthly accumulation is used to schedule
single or successive plantings of a crop between the last
freeze in spring and the first freeze in fall.
Of the total annual precipitation, 5.69 inches, or 51
percent, usually falls from April to September, which in-
cludes the growing season for most crops. Two years in
ten, the April -September rainfall is less than 3.84 inches.
The heaviest 1 -day rainfall during the .period of record
was 1.95 inches at Rifle on October 13, 1957. Thunder-
storms number about 35 each year, 21 of which occur in
summer.
Average seasonal snowfall is 50 inches. The greatest
snow depth at any one time during the period of record
was 29 inches. On the average, 24 days have at least
one inch of snow on the ground, but the number of days
varies greatly from year to year.
The average relative humidity in midafternoon is less
than 33 percent in spring; during the rest of the year it is
RIFLE AREA, COLORADO
about 44 percent. Humidity is higher at night in all sea-
sons, and the average at dawn is about 59 percent. The
percentage of possible sunshine is 77 percent in
summer and 61 percent in winter. The prevailing wind is
from the east-southeast. Average windspeed is highest,
10 miles per hour, in June.
Much of the Rifle Area is higher than Rifle and is
somewhat cooler and receives more precipitation. Glen-
wood Springs, near the eastern edge of the Area, aver-
ages about one degree cooler than Rifle and receives
about 5 inches more precipitation per year.
Farming and ranching
The first settlers in the Rifle Area were homesteaders
who came to develop the land for farming and ranching.
Irrigation systems were soon constructed and a wide
variety of small grains, hay, and vegetables were suc-
cessfully grown. Sugar beets were introduced about
1910 and were a major cash crop until the early 1950's,
when transportation and field labor shortages forced the
producers to grow other crops.
Farming today is primarily concerned with forage for
livestock. There is about 62,000 acres, or about 10
percent of the Rifle Area, in crops and pasture. About
18,000 acres is used for irrigated pasture, and approxi-
mately 44,000 acres is used for harvested crops. Of this,
approximately 40,000 acres is irrigated, and the remain-
ing 4,000 acres is dryfarmed. Approximately 80 percent,
or 32,000 acres, of the irrigated crops is used for alfalfa
and alfalfa -grass mixtures for hay. Other irrigated crops
include corn for ensilage, oats, and barley. Wheat is the
main dryfarmed crop, and a small acreage of oats and
barley is grown (9).
Livestock is the most important part of the Area's
agriculture. Most livestock operations are cow -calf. A few
ranchers raise feeder calves and sell them to commer-
cial feedlots elsewhere. About 65 percent of the Rifle
Area is native rangeland. About 20 percent of the Area is
woodland with considerable grazing value.
The Rifle Area is surrounded by land administered by
the Bureau of Land Management and the Forest Service.
Most ranchers in the area lease grazing allotments on
these lands for summer grazing. Hay, grain, and forage
for ensilage are grown under irrigation and fed to the
livestock in winter.
Farms and ranches in the Rifle Area have become
fewer and larger over the last 10 years. A considerable
amount of land has been sold to land development com-
panies for housing projects. Other land has been sold to
neighboring ranchers. In 1974, there were 41 fewer
farms and ranches in Garfield County than in 1969.
3
Natural resources
Soil, water, vanandium, uranium, natural gas, coal, oil
shale, sand and gravel, and wildlife are the major natural
resources of the Rifle Area.
Soil is the most widely used of the Area's resources
and can yield benefits without depletion if managed and
used properly. The purpose of this report is to aid in
maintaining and improving the value of the soil resource.
The soil in the Rifle Area has a multitude of uses, includ-
ing irrigated crops, trees, rangeland, and urban develop-
ment.
The main source of surface water in the Rifle Area is
the Colorado River. Many tributaries to the Colorado
River contribute to the quality and quantity of water.
Irrigation and domestic water supplies are obtained from
these sources.
Vanadium and uranium are mined in the Area and
extracted from the ore at the mill at Rifle. Natural gas
fields are in the southern part of the survey area. They
are not too concentrated in any one area but are consid-
ered to be high producers. Coal is a potential major
resource in the Rifle Area. It was once intensively mined
along the Grand Hogback near New Castle and Rifle.
Reportedly, huge beds of coal are in the Grand Hog-
back. Oil shale is another resource with enormous po-
tential. The northwestern part of the Area contains the
thickest, richest, and most easily mined oil shale (actual-
ly marlstone rather than shale) deposits in the Green
River Formation of Colorado, Utah, and Wyoming (5).
The Green River Formation is the largest oil shale de-
posit in the world (fig. 3). Sand and gravel deposits are
abundant along the terraces adjacent to the Colorado
River. These deposits have been developed and used to
some extent for construction of an interstate highway
and for local building.
The Rifle Area has some of the best hunting and
fishing in the. State of Colorado. Well managed fish and
game programs are responsible for the development of
this resource.
Recreation and tourism
The natural beauty of the Rifle Area with high moun-
tains on either side of the Colorado River Valley and the
abundance of recreational facilities has created a large
tourist trade, especially in the eastern part of the Area.
The Yampah Hot Springs at Glenwood Springs was
developed as a health and recreation center soon after
the area was settled. It achieved world-wide fame as a
health resort and today is a major attraction. The Hot
Springs pool is the largest outdoor swimming pool in
Colorado and is open all year.
Hiking and camping are also favorite recreations in the
Rifle Area. The White River National Forest borders the
Area. It has many four-wheel-drive roads, horseback
trails, and foot trails.
4
The White River National Forest supports the largest
elk and deer populations in Colorado. The lakes,
streams, and rivers of the White River National Forest
and the Rifle Area are well stocked with trout and pro-
vide excellent fishing. Local fish hatcheries supply trout
for restocking these waters. The Rifle Falls Fish Hatch-
ery is the largest State hatchery in Colorado and one of
the largest in the world.
Cross-country and downhill skiing and snowmobiling
are also popular.
The Rifle Area is accessible by Interstate 70 and the
Rio Grande Western Railroad. Regularly scheduled com-
mercial airline flights fly into Aspen, 45 miles southeast
of Glenwood Springs, and Grand Junction, 64 miles
southwest of Rifle.
How this survey was made
Soil scientists made this survey to learn what kinds of
soil are in the survey area, where they are, and how they
can be used. The soil scientists went into the area know-
ing they likely would locate many soils they already knew
something about and perhaps identify some they had
never seen before. They observed the steepness, length,
and shape of slopes; the size of streams and the general
pattern of drainage; the kinds of native plants or crops;
the kinds of rock; and many facts about the soils. They
dug many holes to expose soil profiles. A profile is the
sequence of natural layers, or horizons, in a soil; it ex-
tends from the surface down into the parent material,
which has been changed very little by leaching or by the
action of plant roots.
• The soil scientists recorded the characteristics of the
profiles they studied, and they compared those profiles
with others in counties nearby and in places more dis-
tant. Thus, through correlation, they classified and
named the soils according to nationwide, uniform proce-
dures.
After a guide for classifying and naming the soils was
worked out, the soil scientists drew the boundaries of the
soils on aerial photographs. These photographs show
woodlands, buildings, field borders, roads, and other de-
tails that help in drawing boundaries accurately. The soil
map at the back of this publication was prepared from
aerial photographs.
The areas shown on a soil map are called soil map
units. Some map units are made up of one kind of soil,
others are made up of two or more kinds of soil, and a
few have little or. no soil material at all. Map units are
discussed in the sections "General soil map for broad
land use planning" and "Soil maps for detailed plan-
ning."
While a soil survey is in progress, samples of soils are
taken as needed for laboratory measurements and for
engineering tests. The soils are field tested, and interpre-
tations of their behavior are modified as necessary
SOIL SURVEY
during the course of the survey. New interpretations are
added to meet local needs, mainly through field observa-
tions of different kinds of soil in different uses under
different levels of management. Also, data are assem-
bled from other sources, such as test results, records,
field experience, and information available from state
and local specialists. For example, data on crop yields
under defined practices are assembled from farm rec-
ords and from field or plot experiments on the same
kinds of soil.
But only part of a soil survey is done when the soils
have been named, described, interpreted, and delineated
on aerial photographs and when the laboratory data and
other data have been assembled. The mass of detailed
information then needs to be organized so that it is
readily available to different groups of users, among
them farmers, managers of rangeland and woodland,
engineers, planners, developers and builders, home-
buyers, and those seeking recreation.
General soil map for broad land use
planning
The general soil map at the back of this publication
shows, in color, map units that have a distinct pattern of
soils and of relief and drainage. Each map unit is a
unique natural landscape. Typically, a map unit consists
of one or more major soils and some minor soils. It is
named for the major soils. The soils making up one unit
can occur in other units but in a different pattern.
The general soil map provides a broad perspective of
the soils and landscapes in the survey area. It provides a
basis for comparing the potential of large areas for gen-
eral kinds of land use. Areas that are, for the most part,
suited to certain kinds of farming or to other land uses
can be identified on the map. Likewise, areas of soils
having properties that are distinctly unfavorable for cer-
tain land uses can be located.
Because of its small scale, the map does not show the
kind of soil at a specific site. Thus, it is not suitable for
planning the management of a farm or field or for select-
ing a site for a road or building or other structure. The
kinds of soil in any one map unit differ from place to
place in slope, depth, stoniness, drainage, or other char-
acteristics that affect their management.
The soils in the survey area vary widely in their poten-
tial for major land uses.
Descriptions of the general soil map units
1. Parachute-Rhone-Irigul
Deep to shallow, well drained, moderately sloping to
steep soils on mountains and ridges
This map unit is in the northwestern part of the survey
area. Elevation is 7,500 to 8,700 feet. The soils are
RIFLE AREA, COLORADO
underlain by and formed in material weathered from
Green River shale and Uinta sandstone. Annual precipi-
tation is about 20 inches, and average annual tempera-
ture is about 40 degrees F.
This map unit covers about 16 percent of the survey
area, or approximately 100,000 acres. The unit is about
30 percent Parachute soils, 30 percent Rhone soils, 20
percent Irigul soils, 15 percent Northwater soils, and 5
percent soils of minor extent.
Parachute soils are on ridges and mountainsides. They
are moderately deep and well drained. The surface layer
is loam, and the subsoil is loam that grades to extremely
channery loam. Bedrock is sandstone.
Rhone soils are on mountainsides. They are deep and
well drained. The surface layer is loam in the upper part
and sandy clay loam in the lower part. The substratum is
very channery sandy clay loam.
Irigul soils are on crests and sides of ridges. They are
shallow and well drained. The surface layer is channery
loam, and the substratum is extremely channery sandy
clay loam. Bedrock is sandstone.
This unit is used entirely for grazing and wildlife habi-
tat. It is poorly suited to other uses. It is grazed mainly
from early summer to early fall. This unit is well suited to
wildlife habitat. Deer, elk, mountain lion, grouse, rabbits,
and squirrels are common.
2. Rock outcrop-Torriorthents
Rock outcrop and moderately deep and shallow, well
drained, very steep and extremely steep soils on escarp-
ments and mountains
This map unit is in the northwestern part of the survey
area below the Roan Plateau from the escarpment
edges down to the toe slope. Average annual precipita-
tion is about 14 inches, and average annual temperature
is about 46 degrees F.
This map unit covers about 5 percent of the survey
area, or approximately 30,000 acres. This unit is about
45 percent Rock outcrop, 40 percent Torriorthents, and
15 percent soils of minor extent.
Rock outcrop is on the nearly vertical cliffs from the
rim of the Roan Plateau to the talus slopes below. It
consists of exposures of shale of the Green River For-
mation. This shale is locally known as "oil shale."
Torriorthents are on the colluvial slopes below the
Rock outcrop. They are moderately deep and shallow
and are well drained. They are clayey to loamy and
contain variable amounts of gravel, cobbles, and stones.
This unit is used primarily for grazing and wildlife habi-
tat, mainly on the toe slopes where browse plants and
some grasses grow. The deer and elk feed at the lower
elevations in winter. Sage grouse, mountain lion, rabbits,
and coyotes also find habitat on this unit. There has
been limited mining of "oil shale" from the Rock outcrop.
Commercial development is extremely limited.
5
. 3. Arvada-Torrifluvents-Heldt
Deep, well drained to somewhat poorly drained, nearly
level to gently sloping soils on benches, terraces, alluvial
fans, and flood plains
This map unit is in the central part of the survey area.
The soils formed in mixed alluvium. Average annual pre-
cipitation is about 13 inches, and average annual tem-
perature is about 48 degrees F.
This map unit covers about 6 percent of the survey
area, or approximately 41,000 acres. This unit is about
40 percent Arvada soils, 20 percent Torrifluvents, 20
perce • - • - • sem
rvada soi re on •enches, terraces, an. fans. They
are deep, well drained, and alkali affected. The surface
layer is loam, the subsoil is strongly alkaline silty clay
loam, and the substratum is silty clay loam.
Torrifluvents are on flood plains and low terraces.
They are deep and well drained to somewhat poorly
drained. They are sandy loam or loam stratified with
sand, gravel, or cobbles.
Heldt soils are on alluvial fans. They are deep and well
drained. The surface layer and subsoil are clay loam,
and the substratum is clay.
Minor in this unit are Nihill, Kim, and Olney soils.
These soils are deep and well drained.
T.Lis unit i$ used for irr��t • •
life habitat. Most of the irrigated crops are on the Heldt
soils.-Ttile major crops are alfalfa, small grains, and irri-
gated pasture. The --suitability of the Arvada soils for
irrigated crop,_ S is_(_oo r because of the stron
a-Tlcati - clition and slow permea•i i. e suitability of
T. - is for irrigation and most o er uses is or
because of flooding a . a ig�water as e. is unit has
.L ecause of
ntial. and—salinity
.. • wildlife habits
••
••
• . •
•
. •
poor suitability for
ing, i•h shrink -swell
al a mites
rtorrifluvents have fair suitability for wetland wild i e a
tat.
4. Torriorthents-Rock outcrop-Camborthids
Dominantly shallow to deep, well drained, steep to ex-
tremely steep soils, and Rock outcrop, on mountains,
fans, and ridges
This map unit is throughout the survey area. The soils
formed in sandstone and shale. Average annual precipi-
tation is about 14 inches, and average annual tempera-
ture is about 47 degrees F.
This map unit covers about 20 percent of the survey
area, or approximately 130,000 acres. This unit is about
50 percent Torriorthents, 20 percent Rock outcrop, 20
percent Camborthids, and 10 percent soils of minor
extent.
Torriorthents are on steep and very steep mountain-
sides and steep fans. They are shallow and moderately
6 SOIL SURVEY
deep and are well drained. They are clayey to loamy and
contain variable amounts of gravel, cobbles, and stones.
Rock outcrop is on steep and very steep mountain-
sides and escarpments. It is mostly sandstone and
shale.
Camborthids are on steep fans and mountainsides.
They are shallow to deep and are generally clayey to
loamy throughout.
Minor in this unit are Lazear, Dollard, and Ansari soils.
These soils are on steep mountainsides.
This unit is used almost entirely for wildlife habitat and
limited grazing. It is well suited to wildlife habitat and is
important winter feeding areas for deer and elk. Grouse,
mountain lion, rabbits, and coyotes also use these areas.
This unit is poorly suited to community development be-
cause of depth to rock, steep slopes, and Rock outcrop.
5. Potts-Ildefonso-Vale
Deep, well drained, gently sloping to steep soils on
mesas, alluvial fans, terraces, and benches
This map unit is in the central and south-central parts
of the survey area. The soils formed in loess caps over
gravelly material on mesas and in a mixture of basalt
and sandstone outwash. Average annual precipitation is
about 14 inches, and average annual temperature is
about 47 degrees F.
This map unit covers about 16 percent of the survey
area, or approximately 100,000 acres. This unit is about
40 percent Potts soils, 20 percent Ildefonso soils, 15
percent Vale soils, 10 percent Olney soils, and 15 per-
cent soils of minor extent.
Potts and Vale soils are on mesas and gently sloping
fans. They are deep and well drained. The surface layer
is loam or silt loam, the subsoil is clay loam or silty clay
loam, and the substratum is loam and silt loam.
Ildefonso soils are on moderately sloping to steep
fans. They are deep and well drained. The surface layer
is stony loam, and the substratum is very stony loam.
Olney soils are on gently sloping fans.
Minor in this unit are Heldt and Pena soils, Torriorth-
ents, Camborthids, and Rock outcrop.
About 60 percent of this unit is used for dryfarmed and
irrigated crops. Most irrigated crops are hay and pasture.
A very small acreage is dryfarmed. The rest of the unit is
used for grazing and nonirrigated pasture. Wildlife such
as deer, elk, rabbits, grouse, and doves find food and
cover on this unit. Deer and elk use this unit as a prime
winter feeding area. A few pheasant and chukar live near
areas where cereal crops are grown.
—� 6. Morval-Villa Grove
Deep, well drained, moderately sloping to moderately
steep soils on mesas, mountainsides, and alluvial fans
This map unit is in the south-central and extreme east-
ern parts of the survey area. The soils formed in alluvium
and outwash derived from mixed basalt and sandstone
from mountainous areas. Average annual precipitation is
about 16 inches, and average annual temperature is
about 44 degrees F.
This map unit covers about 8 percent of the survey
area, or approximately 50,000 acres. The unit is about
15 percent Morval soils, 15 percent Villa Grove soils, 10
percent Tridell soils, 10 percent Zoltay soils, and 50
percent soils of minor extent.
Morval soils are on moderately sloping mesas and
sides of valleys. They are deep and well drained. The
surface layer is loam, the subsoil is clay loam, and the
substratum is stony loam.
Villa Grove soils are on mountainsides and fans. They
are deep and well drained. The surface layer is loam, the
subsoil is clay loam, and the substratum is loam.
Tridell soils are on strongly sloping to moderately
steep mesa sides and fans. They are deep and well
drained. The surface layer is stony loam, and the sub-
stratum is very stony loam. Zoltay soils are on moderate-
ly steep mountainsides and fans. They are deep and well
drained. The surface layer is loam, and the subsoil and
substratum are cobbly clay.
Minor in this unit are Ansari, Dollard, Detra, and Jerry
soils and Torriorthents, Camborthids, and Rock outcrop.
Nearly all of this unit is used for grazing and wildlife
habitat. It produces good stands of grasses, forbs, and
browse shrubs. This unit is used extensively by wildlife
and is a wintering area for deer and elk. Upland wildlife
such as grouse and dove also fine cover and food on
this unit. Nearly all of the soils in this unit are poorly
suited to community development. Steep slopes, stones,
and high shrink -swell potential are the main limitations.
7. Lazear-Cushman-Ascalon
Shallow to deep, well drained, moderately sloping to very
steep soils on mountains, mesa breaks, and alluvial fans
This map unit is in the central and north -central parts
of the survey area. The soils formed in material weath-
ered from sandstone, limestone, and shale and in mixed
alluvium. Average annual precipitation ranges from 12 to
15 inches, and average annual temperature is about 48
degrees F.
This map unit covers about 6 percent of the survey
area, or approximately 35,000 acres. The unit is about
30 percent Lazear soils, 30 percent Cushman soils, 15
percent Ascalon soils, and 25 percent soils of minor
extent.
Lazear soils are on moderately sloping to very steep
mountainsides and mesa breaks. They are shallow and
well drained. The surface layer is gravelly loam, and the
substratum is cobbly loam. Bedrock is sandstone.
Cushman soils are on moderately sloping to steep
mesa breaks and side slopes. They are moderately deep
and well drained. The surface layer is stony loam, the
1Y)
r-
10
rn
r
re
NATIONAL
Z — E
o)
1.2
Z
O
ri
a
7
wOS
> W =S
w g
�z; * 1y � � CZ ° 2
O
6. 2W0z
o�U
W C % J A W
MU
d 8 v W rs, w
'1 Z aa
NRg W 0°`
D cl v 4.
J 0 O
oo ct
E-.
a
a
I
E!il
■ i•
mum AlunowI::M1R.0 ,� m
111111"ar NV ..a.C,CINIIILIP IMF
sir 11.1111.11.11110111111.11111., .14, Il��isu— aA
ow 011111111N MaltilLIPPI,TECAMINIV
I 1 S gr 7 Nowsky Blimay-
r" aw, MAIgA i EP
OF allIfillMeam
rdolryiniiimioNiFin
,, I t 2%%K■■r�■`\\I' E' �
31®■
RIO BLANCO
8
8
0
=ice► rAmerdwiLluagszcjik A
r VIMETAIIIIMMIE1
.4_,61 EtilgOLUIRMasmiti
■IIIr�, 111 1■1�1\W ®\lam
■EIMIONSERIMMINOIMPRil
las 0"
ES Ai a��ai, l �iiri�;y -!mail11111111140071 "isimmajtmahrimmillaitlfatgilaiVIIIINIIMMWEEr4iIMO ...raNKVS
WHITE RIVER
NATIONAL
0
'
VI
z
8
• •
RIFLE AREA, COLORADO
11
ment. Reducing brush improves the range if the grass is on mesas, alluvial fans, and terraces. Elevation ranges
understory is adequate. from 5,000 to 6,500 feet. The soil formed in alluvium
Cottontail rabbit and pheasant find shelter on this soil derived from sandstone and shale. The average annual
if they can obtain food in surrounding areas. precipitation is about 14 inches, the average annual air
Use of this soil for sanitary facilities, for community temperature is about 48 degrees F, and the average
development, and as a source of construction material is frost -free period is about 120 days.
limited by the high shrink -swell potential, slow permeabil- Typically, the surface layer is brown fine sandy loam
ity, clayey textures, and salinity. about 5 inches thick. The subsoil is brown and yellowish
This soil is in capability subclass Vlls, irrigated and brown sandy clay loam about 30 inches thick. The sub -
nonirrigated. stratum is very pale brown sandy clay loam to a depth of
60 inches.
4—Arvada loam, 6 to 20 percent slopes. This deep,-- Included with this soil in mapping are small areas of
well drained, sloping soil is on fans and high terraces. Olney and Potts soils that have slopes of 1 to 6 percent.
Elevation ranges from 5,100 to 6,200 feet. This soil Permeability is moderate, and available water capacity
formed in highly saline alluvium derived from sandstone is moderate. Effective rooting depth is 60 inches. Sur -
and shale. The average annual precipitation is about 12 face runoff is slow, and the erosion hazard is moderate.
inches, average annual air temperature is about 48 de- This soil is used mainly for irrigated crops, hay, and
grees F, and the average frost -free period is about 120 pasture. Some areas are used for grazing and wildlife
days. habitat.
Typically, the surface layer is moderately alkaline, pale This soil is irrigated mainly by corrugations. Sprinklers
brown loam about 3 inches thick. The subsoil is brown are also suitable. This soil erodes easily. Such practices
silty clay loam about 14 inches thick. The substratum is as minimum tillage, grassed waterways, and tail water
light brown or brown silty clay loam to a depth of 60 control reduce the danger of excessive erosion. Drop
inches. structures in irrigation ditches control water and prevent
Included with this soil in mapping are small areas of excessive ditch erosion.
Limon, Kim, and Heldt soils. The native vegetation on this soil is mainly need -
Permeability is very slow, and available water capacity leandthread, wheatgrasses, and sagebrush.
is high. Effective rooting depth is 60 inches or more. When range condition deteriorates, forbs and shrubs
Organic matter content of the surface layer is low. Sur- increase. When the range is in poor condition, undesira-
face runoff is moderately rapid, and the erosion hazard is ble weeds and annual plants are numerous. Properly
severe. managing grazing maintains and improves range condi-
This soil is used mainly for wildlife habitat and limited tion. Reducing brush also improves the range. Seeding
grazing. improves range in poor condition. Pubescent wheat -
The native vegetation on this soil is mainly sagebrush, grass, western wheatgrass, and big bluegrass are suit-
greasewood, and wheatgrass. able for seeding. Preparing a seedbed and drilling the
. When range condition deteriorates, grasses decrease seed are good practices.
and weedy forbs, cheatgrass, big sagebrush, and This soil has potential as habitat for pheasant, cotton-
greasewood increase. Properly managing grazing main- tail rabbit, mourning dove, and squirrel. These animals
tains and improves range condition. Seeding improves mostly obtain food and shelter in areas of crops and hay.
range in poor condition. Western wheatgrass and tall This soil has few limitations for community develop-
wheatgrass are suitable for seeding. Preparing a ment. Low strength and frost action affect structures and
seedbed and drilling the seed are good practices. Irrigat- roads. Community sewage systems will be needed if the
ing new seedings is necessary for successful establish- population density increases.
ment. Brush should not be reduced because grass pro- This soil is in capability subclasses Ille, irrigated, and
duction is low and some desirable native shrubs could IVe, nonirrigated.
be destroyed.
Cottontail and pheasants find shelter on this soil if 6—Ascalon fine sandy loam, 6 to 12 percent
they can obtain food in surrounding areas. slopes. This deep, well drained, moderately sloping to
Use of this soil for sanitary facilities and as a source of rolling soil is on mesas, terraces, sides of valleys, and
construction material is limited by the large amounts of alluvial fans. Elevation ranges from 5,000 to 6,500 feet.
clay and salts. This soil is corrosive to steel and con- The soil formed in alluvium derived from sandstone and
crete. Community development is limited by high shrink- shale. The average annual precipitation is about 14
swell potential, salinity, and steep slopes. inches, the average annual air temperature is about 48
This soil is in capability subclass VI Is, nonirrigated. degrees F, and the average frost -free period is about
120 days.
5—Ascalon fine sandy loam, 1 to 6 percent slopes. Typically, the surface layer is brown fine sandy loam
This deep, well drained, nearly level to gently sloping soil about 5 inches thick. The subsoil is brown and yellowish
30
degrees F, and the average frost -free period is about
125 days.
Typically, the surface layer is grayish brown loam
about 12 inches thick. The subsoil is grayish brown and
light gray sandy clay loam about 21 inches thick. The
substratum is light gray gravelly sandy clay loam or very
gravelly sandy loam to a depth of 60 inches.
Included with this soil in mapping are small areas of
Heldt, Potts, and Kim soils that have slopes of 3 to 6
percent. These areas make up 5 to 15 percent of the
map unit.
Permeability is moderate, and available water capacity
is moderate. Effective rooting depth is 60 inches or
more. Surface runoff is slow, and the erosion hazard is
moderate.
This soil is used mainly for irrigated crops and hay.
Alfalfa, small grains, corn for silage, and grass or grass -
legume mixtures are grown. Small acreages are in fruits,
including apples, peaches, and apricots. Isolated areas
are used for grazing.
This soil is irrigated by furrows and flooding. Sprinklers
are also suitable. Drop structures in irrigation ditches
help to control water and prevent excessive ditch ero-
sion.
The native vegetation on this soil is mainly wheat -
grass, needleandthread, and sagebrush.
When range condition deteriorates, (orbs and shrubs
increase. When the range is in poor condition, undesira-
ble weeds and annual plants are numerous. Properly
managing grazing maintains and improves range condi-
tion. Reducing brush improves deteriorated range. Seed-
ing improves range in poor condition. Crested wheat -
grass, western wheatgrass, and Russian wildrye are suit-
able for seeding. Preparing a seedbed and drilling the
seed are good practices.
Cottontail rabbit, squirrel, pheasant, and some mule
deer find habitat on this soil.
Community development and recreation are limited by
low strength.
This soil is in capability subclasses Ille, irrigated, and
IVe, nonirrigated.
51—Olney loam, 6 to 12 percent slopes. This deep,,.._.
well drained, moderately sloping to rolling soil is on allu-
vial fans and sides of valleys. Elevation ranges from
5,000 to 6,500 feet. This soil formed in alluvium derived
from sandstone and shale. The average annual precipita-
tion is about 14 inches, the average annual air tempera-
ture is about 48 degrees F, and the frost -free period is
about 125 days.
Typically, the surface layer is grayish brown loam
about 12 inches thick. The subsoil is grayish brown and
light gray sandy clay loam about 21 inches thick. The
substratum is light gray gravelly sandy clay loam and
very gravelly sandy loam to a depth of 60 inches.
Included with this soil in mapping are small areas of
Heldt, Potts, and Kim soils that have slopes of 6 to 12
SOIL SURVEY
percent. These areas make up 5 to 15 percent of the
map unit.
Permeability is moderate, and available water capacity
is moderate. Effective rooting depth is 60 inches or
more. Surface runoff is medium, and the erosion hazard
is moderate.
This soil is used mainly for irrigated hay, fruits, and
grazing. Grass -legume mixtures and apples, peaches,
and apricots are grown.
This soil is irrigated by furrows and flooding. Sprinklers
are also suitable. Drop structures in irrigation ditches
help to control water and prevent excessive ditch ero-
sion. Keeping a grass or legume cover on this soil at
least three-fourths of the time controls erosion.
The native vegetation on this soil is mainly wheat -
grass, needleandthread, and sagebrush.
When range condition deteriorates, forbs and shrubs"
increase. When the range is in poor condition, undesira-
ble weeds and annual plants are numerous. Properly
managing grazing maintains and improves range condi-
tion. Reducing brush improves the range. Seeding im-
proves range in poor condition. Crested wheatgrass,
western wheatgrass, and Russian wildrye are suitable for
seeding. Preparing a seedbed and drilling the seed are
good practices.
Cottontail rabbit, squirrel, pheasant, and some mule
deer find habitat on this soil.
Community development and recreation are limited by
steep slopes and low strength.
This soil is in capability subclass IVe, irrigated and
nonirrigated.
52—Parachute loam, 25 to 65 percent slopes. This
moderately deep, well drained, hilly to very steep soil is
on north- and east -facing mountainsides. Elevation
ranges from 7,500 to 8,700 feet. This soil formed in
residuum from sandstone. The average annual precipita-
tion is 20 inches, the average annual air temperature is
about 40 degrees F, and the average frost -free period is
less than 75 days.
Typically, the surface layer is grayish brown loam
about 5 inches thick. The upper part of the subsoil is
very dark grayish brown and brown loam about 13
inches thick, and the lower part is light yellowish brown
extremely channery loam about 11 inches thick. Hard,
fractured sandstone bedrock is at a depth of 29 inches.
Included with this soil in mapping are small areas of
Rhone and Irigul soils. The Rhone soils are in concave
positions. These areas make up 10 to 15 percent of the
map unit. Irigul soils are on ridge crests.
Permeability is moderate, and available water capacity
is low. Effective rooting depth is 20 to 40 inches. Surface
runoff is medium, and the erosion hazard is moderate.
This soil is used mainly for wildlife habitat and limited
grazing.
RIFLE AREA, COLORADO
66—Torriorthents-Camborthids-Rock outcrop com-
plex, steep. This broadly defined unit consists of ex-
posed sandstone and shale bedrock, loose stones, and
soils that are shallow to deep over sandstone and shale
bedrock and stony basaltic alluvium. This complex
occurs throughout the survey area. The soils and out-
crops are moderately steep to very steep. Slope ranges
from 15 to 70 percent.
Torriorthents make up about 45 percent of the com-
plex, Camborthids make up 20 percent, and Rock out-
crop makes up 15 percent. The Torriorthents are on
foothills and mountainsides below Rock outcrop. The
moderately steep Camborthids are on lower toe slopes
and concave open areas on foothills and mountainsides.
Torriorthents are shallow to moderately deep. They
are generally clayey to loamy and contain variable
amounts of gravel, cobbles, and stones. The surface is
normally covered with stones weathered from the higher -
lying Rock outcrop. South of the Colorado River, basaltic
stones and cobbles are on the surface.
Camborthids are shallow to deep. They are generally
clayey to loamy and have slightly more clay in the sub-
soil than in the surface layer. The surface layer is light
colored. The profile is normally free of stones, but scat-
tered basalt stones, cobbles, and sandstone fragments
are on the surface.
The Rock outcrop is mainly Mesa Verde sandstone
and Wasatch shale. Some areas are covered with basal-
tic boulders and stones. Small areas of limestone out-
crops and exposed gypsum are in the eastern part of the
survey area.
Included in mapping are small, isolated areas of Ilde-
fonso, Lazear, Ansari, Begay, Heldt, and Dollard soils.
These intermittent areas make up 10 to 20 percent of
this map unit.
This complex is used for grazing, wildlife habitat, and
recreation.
The stones on the surface and the steep slopes make
this complex unsuitable for crops. Some areas can be
reseeded to pasture by broadcast seeding. Other plant-
ing methods are made difficult by the stones and slopes.
The native vegetation includes wheatgrasses, blue -
grasses, Indian ricegrass, needlegrasses, bitterbrush,
mountainmahogany, sagebrush, and an overstory of
pinyon and juniper.
The value of grazing is fair. The vegetation should be
managed to maintain wood production and limited graz-
ing. Selectively thinning the pinyon and juniper improves
grazing and provides firewood and posts. Steep slopes,
moderate to severe erosion hazard, and slow regrowth
of trees affect harvesting and management.
Most of this complex is a prime wintering area for
deer. Rabbits, coyote, and a few elk also find food and
cover on this complex.
Building is limited by steep slopes and stoniness.
These limitations can be overcome by appropriate
design and construction.
37
This complex is in capability subclass Vile, nonirrigat-
ed.
_- 67—Torriorthents-Rock outcrop complex, steep. i
This broadly defined unit consists of exposed sandstone
and shale bedrock and stony soils that are shallow to
moderately deep over sandstone and shale and stony
basaltic alluvium. Areas of this complex occur throughout
the survey area. The soils and outcrops are moderately
steep to very steep. Slope ranges from 15 to 70 percent.
Torriorthents make up about 60 percent of this com-
plex, and Rock outcrop makes up 25 percent. The Tor-
riorthents are on foothills and mountainsides below the
Rock outcrop.
Torriorthents are generally clayey to loamy and con-
tain variable amounts of gravel, cobbles, and stones.
The surface is normally covered with stones weathered
from the higher -lying Rock outcrop. South of the Colora-
do River, stones and cobbles of basalt are on the sur-
face.
The Rock outcrop is mainly Mesa Verde sandstone
and Wasatch shale. Some areas are covered with basal-
tic boulders and stones. Small areas of limestone out-
crops and exposed gypsum are in the eastern part of the
survey area.
Included in mapping are small isolated areas of Ilde-
fonso, Lazear, Ansari, Gaynor, Tridell, and Nihill soils.
These intermittent areas make up 10 to 15 percent of
this map unit.
This complex is used fcr limited grazing, wildlife habi-
tat, and recreation.
Because of the stones on the surface, the Rock out-
crop, and the steep slope, this complex is unsuited to
crops.
The native vegetation includes wheatgrass, bluegrass,
Indian ricegrass, needlegrass, bitterbrush, sagebrush,
mountainmahogany and an overstory of pinyon and juni-
per.
The vegetation should be managed to maintain wood
production and limited grazing. Selectively thinning the
pinyon and juniper improves grazing and provides fire-
wood and posts. Steep slopes, moderate to severe ero-
sion hazard, and slow regrowth of trees affect harvesting
and management.
Most of this complex is a prime wintering area for
deer. Rabbits, coyote, and a few elk also find food and
cover on this complex.
Community development is limited by the Rock out-
crop, steep slopes, and stoniness. These limitations can
be overcome by appropriate design and construction.
This complex is in capability subclass Vile, nonirrigat-
ed.
68—Vale silt loam, 3 to 6 percent slopes. This deep,
well drained, gently sloping soil is on mesas, terraces,
and alluvial fans. Elevation ranges from 5,000 to 7,200
feet. This soil formed in calcareous eolian material. The
RIFLE AREA, COLORADO
Arle series
The Arle series consists of moderately deep, well
drained soils that formed in residuum from red shale and
sandstone. Arle soils are on ridges and hills in the up-
lands. Slopes are 12 to 65 percent. The average annual
precipitation is about 18 inches, and the average annual
air temperature is about 43 degrees F.
Arle soils are similar to Tridell soils. Tridell soils con-
tain a calcic horizon and are calcareous throughout the
profile.
Typical pedon of Arle very stony loam, 12 to 65 per-
cent slopes, about 2,450 feet north and 400 feet east of
the southwest corner, section 24, T. 6 S., R. 88 W.:
A1-0 to 10 inches; reddish brown (5YR 4/3) very stony
loam, dark reddish brown (5YR 3/3) moist; moder-
ate medium granular structure; soft, very friable; 40
percent flagstones; mildly alkaline; gradual smooth
boundary.
B2-10 to 19 inches; reddish brown (5YR 4/4) very
stony loam, reddish brown (5YR 3/4) moist; moder-
ate medium subangular blocky structure parting to
moderate medium granular; slightly hard, very fri-
able; 40 percent flagstones; slightly calcareous;
moderately alkaline; clear wavy boundary.
Cca-19 to 32 inches; reddish brown (5YR 5/4) very
stony loam, reddish brown (5YR 4/4) moist; mas-
sive; hard, very friable; 60 percent flagstones; visible
accumulations of secondary calcium carbonate as
small lime concretions and as coatings on under-
sides of coarse fragments; strongly calcareous;
moderately alkaline; clear wavy boundary.
Cr -32 to 60 inches; soft reddish brown sandstone and
shale.
The mollic epipedon ranges from 7 to 15 inches in
thickness. Depth to the paralithic contact ranges from 20
to 40 inches. In places this soil is leached to a depth of
7 to 15 inches. Coarse fragments make up 35 to 80
percent, by volume, of the soil.
The A horizon has hue of 2.5YR to 5YR, value of 4 or
5 dry and 2 or 3 moist, and chroma of 3 to 6. The B
horizon has hue of 2.5YR to 5YR, value of 4 to 6 dry
and 3 to 5 moist, and chroma of 3 to 6. The C horizon
has hue of 5YR to 10R.
Arvada series
The Arvada series consists of deep, well drained soils
that formed in alluvium derived from shale. Arvadas soil
are on benches, terraces, and outwash fans. Slopes are
1 to 20 percent. The average annual precipitation is 12
inches, and the average annual air temperature is 48
degrees F.
Arvada soils are similar to Heldt and Potts soils. Heldt
soils do not have a natric horizon or an argillic horizon.
53
Potts soils are less than 35 percent clay in the control
section and do not have a natric horizon.
Typical pedon of Arvada loam, 1 to 6 percent slopes,
about 2,640 feet south and 200 feet east of the north-
west corner of section 34, T. 7 S., R. 96 W.:
A2-0 to 3 inches; pale brown (10YR 6/3) loam, brown
(10YR 5/3) moist; moderate medium platy structure
parting to weak fine granular; soft, friable, calcare-
ous; strongly alkaline; abrupt smooth boundary.
B21 t-3 to 7 inches; brown (7.5YR 5/2) silty clay loam,
dark brown (7.5YR 4/2) moist; weak coarse colum-
nar structure parting to moderate medium subangu-
lar blocky; hard, firm, slightly sticky and slightly plas-
tic; thin patchy clay films on peds; calcareous;
strongly alkaline; clear smooth boundary.
B22t-7 to 17 inches; brown (7.5YR 5/2) silty clay loam,
dark brown (7.5YR 4/2) moist; moderate medium
subangular blocky structure; hard, firm, sticky and
plastic; thin, nearly continuous clay films on peds; 15
percent white (10YR 8/2) salt accumulations; calcar-
eous; strongly alkaline; clear smooth boundary.
Ccasa-17 to 40 inches; light brown (7.5YR 6/4) silty
clay loam, dark brown (7.5YR 4/2) moist; massive;
very hard, firm, sticky and plastic; calcium carbonate
accumulations as seams and mycelia; some gypsum
crystals on peds; 30 percent white (10YR 8/2) salt
accumulations; calcareous; strongly alkaline; gradual
smooth boundary.
C-40 to 60 inches; brown (7.5YR 5/3) silty clay loam,
dark brown (7.5YR 4/2) moist; few fine yellowish
brown mottles (10YR 5/8); massive; very hard, firm,
slightly sticky and slightly plastic; 15 percent white
(10YR 8/2) salt accumulations; calcareous; moder-
ately alkaline.
The solum ranges from 15 to 25 inches in thickness.
Depth to calcareous material ranges from 0 to 8 inches.
A thin Al horizon is present in some pedons. The light
colored, platy A2 horizon is absent in some pedons.
The A horizon has hue of 2.5Y or 10YR, value of 5 or
6 dry and 4 or 5 moist, and chroma of 2 to 4. The A
horizon ranges from moderately alkaline to very strongly
alkaline. The B horizon has hue of 10YR or 7.5YR, value
of 5 or 6 dry and 4 or 5 moist, and chroma of 2 to 4. The
C horizon has hue of 10YR or 7.5YR, value of 5 to 7 dry
and 4 or 5 moist, and chroma of 2 to 4.
Ascalon series
The Ascalon series consists of deep, well drained soils
that formed in alluvium derived from sandstone and
shale. Ascalon soils are on alluvial fans and sloping
mesas. Slopes are 1 to 12 percent. The average annual
precipitation is about 15 inches, and the average annual
air temperature is about 48 degrees F.
RIFLE AREA, COLORADO
Typical pedon of Nihill channery loam, 6 to 25 percent
slopes, about 1,200 feet south of the northwest corner of
section 21, T. 6 S., R. 96 W.:
A1-0 to 4 inches; light gray (10YR 7/2) channery loam,
grayish brown (10YR 5/2) moist; weak medium
granular structure; soft, friable, slightly sticky and
slightly plastic; 20 percent channery fragments; cal-
careous; moderately alkaline; clear smooth bound-
ary.
AC -4 to 11 inches; very pale brown (10YR 7/2) chan-
nery loam, brown (10YR 5/3) moist; moderate
medium granular structure; slightly hard, friable,
sticky and plastic; 30 percent channery fragments;
calcareous; moderately alkaline; gradual smooth
boundary.
C1ca-11 to 18 inches; very pale brown (10YR 7/3) very
channery loam, brown (10YR 5/3) moist; massive;
slightly hard, friable; 40 percent channery fragments;
common visible calcium carbonate nodules and oc-
casionally scattered gypsum crystals in lower part of
horizon; moderately alkaline; gradual wavy boundary.
C2ca-18 to 60 inches; very pale brown (10YR 7/3)
stratified extremely channery sandy loam and loam,
pale brown (10YR 6/3) moist; massive; slightly hard,
friable; 75 percent channery fragments; calcareous;
moderately alkaline.
Channery fragments cover 20 to 50 percent of the
surface. Most coarse fragments in the C1 ca and C2ca
horizons have thin coatings of calcium carbonate on the
underside and are fragments of sandstone less than 3
inches long and 1/2 to 1 1/2 inches thick; they make up
more than 35 percent of the profile. Reaction is mildly
alkaline to moderately alkaline throughout.
The A and C horizons have hue of 2.5Y to 7.5YR,
value of 5 to 7 dry and 4 to 6 moist, and chroma of 2 to
4 dry and moist.
Northwater series
The Northwater series consists of deep, well drained
soils formed in residuum from sedimentary rock. North -
water soils are on mountainsides. Slopes are 15 to 65
percent. The average annual precipitation is about 20
inches, and the average annual air temperature is about
40 degrees F.
Northwater soils are similar to Rhone soils. Rhone
soils do not have a skeletal control section.
Typical pedon of Northwater loam, 15 to 65 percent
slopes, about 1,000 feet east and 75 feet north of the
southwest corner of section 12, T. 5 S., R. 96 W.:
02-2 inches to 0; organic material.
A11-0 to 10 inches; brown (10YR 4/3) loam, very dark
grayish brown (10YR 3/2) moist; moderate fine
granular structure; soft, very friable, slightly sticky
65
and slightly plastic; many fine and very fine roots;
neutral; clear smooth boundary.
Al2-10 to 25 inches; dark grayish brown (10YR 4/2)
loam, very dark brown (10YR 2/2) moist; moderate
fine granular structure; slightly hard, very friable,
slightly sticky and slightly plastic; many fine and very
fine roots; 10 percent fragments which are mainly
less than 1 inch in diameter; clear wavy boundary.
B2t-25 to 50 inches; light brown (7.5YR 6/4) very chan-
nery clay loam, dark brown (7.5YR 4/4) moist; mod-
erate medium subangular blocky structure that parts
to moderate fine subangular blocky; hard, friable,
sticky and plastic; common medium and large roots;
common thin clay films and organic coats on peds
and along root channels; 50 percent channery frag-
ments, mostly 3/4 inch to 3 inches long; neutral;
clear wavy boundary.
R-50 inches; fractured sandstone.
Depth to bedrock is more than 40 inches but generally
is less than 60 inches. The mollic epipedon ranges from
20 to 35 inches in thickness. Depth to the top of the
argillic horizon is 24 inches or more. Reaction is slightly
acid to mildly alkaline throughout.
The A horizon has hue of 7.5YR to 2.5Y, value of 4 or
5 dry and 2 or 3 moist, and chroma of 2 or 3. Content of
rock fragments is generally less than 15 percent. The B
horizon has hue of 7.5YR to 2.5Y, value of 6 or 7 dry
and 4 or 5 moist, and chroma of 3 or 4. Content of rock
fragments, which are mostly thin and flat and mainly 3/4
to 3 inches long, ranges from 35 to 65 percent. The C
horizon, where present, has hue of 7.5YR to 2.5Y and
contains as much as 85 percent rock fragments.
Olney series
The Olney series consists of deep, well drained soils
that formed in alluvium derived from sandstone and
shale. Olney soils are on nearly level alluvial fans and
valley sides. Slopes are 1 to 12 percent. The average
annual precipitation is about 14 inches, and the average
annual air temperature is about 48 degrees F.
Olney soils are similar to Potts soils. Potts soils are
less than 35 percent fine and coarser sand in the control
section.
Typical pedon of Olney loam, 3 to 6 percent slopes,
about 1,400 feet north and 100 feet west of the south-
east corner of section 6, T. 6 S., R. 91 W.:
Ap-0 to 12 inches; grayish brown (10YR 5/2) loam,
dark grayish brown (10YR 4/2) moist; weak medium
subangular blocky structure parting to weak medium
granular; slightly hard, very friable; neutral; clear
smooth boundary.
B2t-12 to 18 inches; grayish brown (10YR 5/2) sandy
clay loam, dark grayish brown (10YR 4/2) moist;
weak medium prismatic structure parting to moder-
66 SOIL SURVEY
ate medium subangular blocky; slightly hard, very
friable; common clay films on peds; calcareous;
mildly alkaline; clear smooth boundary.
B3ca-18 to 33 inches; light gray (10YR 7/2) sandy day
loam, dark grayish brown (10YR 4/2) moist; weak
coarse subangular blocky structure parting to weak
medium subangular blocky; slightly hard, very friable,
visible calcium carbonate as concretions, seams,
and streaks; calcareous; moderately alkaline; clear
wavy boundary.
Clca-33 to 43 inches; light gray (10YR 7/2) gravelly
sandy clay loam, grayish brown (10YR 5/2) moist;
massive; hard, very friable; 25 percent gravel and
cobbles; visible calcium carbonate as concretions,
seams, and streaks; calcareous; moderately alkaline;
clear wavy boundary.
C2ca-43 to 60 inches; light gray (10YR 7/2) very grav-
elly sandy loam, grayish brown (10YR 5/2) moist;
massive; slightly hard, friable; 30 percent gravel and
10 percent cobbles; visible calcium carbonate as
concretions, seams, and streaks and as coatings on
gravel and cobbles; calcareous; moderately alkaline.
Depth to calcareous material ranges from 10 to 20
inches. The solum ranges from 20 to 35 inches in thick-
ness. The control section averages more than 35 per-
cent fine and coarser sand.
The A horizon has hue of 2.5Y or 10YR, value of 5 or
6 dry and 3 or 4 moist, and chroma of 2 or 3. The B
horizon has hue of 2.5Y or 10YR, value of 5 or 6 dry and
4 or 5 moist, and chroma of 2 to 4. The Cca horizon has
hue of 10YR, value of 7 or 8 dry and 5 or 6 moist, and
chroma of 2 or 3.
Parachute series
The Parachute series consists of moderately deep,
well drained soils that formed in residuum from sand-
stone or maristone. Parachute soils are on mountain-
sides. Slopes are 5 to 65 percent. The average annual
precipitation is about 20 inches, and the average annual
air temperature is about 40 degrees F.
Parachute soils are similar to Northwater and Rhone
soils. Northwater and Rhone soils are deep.
Typical pedon of Parachute loam, 5 to 30 percent
slopes, 75 feet north and 150 feet west of the southeast
corner of section 25, T. 4 S., R. 96 W. (fig. 9):
A1-0 to 5 inches; grayish brown (10YR 5/2) loam, dark
brown (10YR 3/3) moist; weak fine subangular
blocky structure parting to moderate fine granular;
slightly hard, very friable, slightly sticky and slightly
plastic; many fine roots; neutral; clear smooth
boundary.
B21-5 to 13 inches; very dark grayish brown (10YR
3/2) loam, very dark brown (10YR 2/2) moist; mod-
erate medium subangular blocky structure; slightly
hard, very friable, slightly sticky and slightly plastic;
10 percent fine channery fragments; many fine
roots; neutral; clear smooth boundary.
B22-13 to 18 inches; brown (10YR 5/3) loam, brown
(10YR 4/3) moist; weak medium subangular blocky
structure; slightly hard, friable, slightly sticky and
slightly plastic; 10 percent fine and medium chan-
nery fragments; common fine and medium roots;
neutral; clear wavy boundary.
B3-18 to 29 inches; light yellowish brown (10YR 6/4)
extremely channery loam, yellowish brown (10YR
5/4) moist; weak coarse subangular blocky struc-
ture; hard, friable, sticky and plastic; 80 percent
channery fragments mostly 3/4 inch to 3 inches in
size; few medium and fine roots; neutral; clear wavy
boundary.
R-29 inches; hard slightly fractured sandstone and
maristone.
The mollic epipedon ranges from 10 to 15 inches in
thickness. Depth to the lithic contact ranges from 20 to
40 inches. Texture of the control section is typically
loam, but clay content ranges from 18 to 35 percent.
Content of rock fragments, most of which are 3/4 to 3
inches long, range from 35 to 85 percent, by volume.
The Al and B2 horizons have hue of 7.5YR to 2.5Y,
value of 4 or 5 dry and 2 or 3 moist, and chroma of 2 or
3. The B3 and C horizons, where present, have hue of
7.5YR to 2.5Y, value of 6 or 7 dry and 4 or 5 moist, and
chroma of 3 or 4.
Pena series
The Pena series consists of deep, well drained soils
that formed in calcareous alluvium derived from sand-
stone and shale. Pena soils are on valley sides. Slopes
are 6 to 25 percent. The average annual precipitation is
about 12 inches, and the average annual air temperature
is about 48 degrees F.
The Pena soils are similar to Tridell soils. Tridell soils
have a frigid temperature regime.
Typical pedon of Pena stony loam, 6 to 25 percent
slopes, about 1,300 feet east and 200 feet north of the
southwest corner of section 13, T. 5 S., R. 90 W.:
A1-0 to 6 inches; dark grayish brown (10YR 4/2) stony
loam, very dark grayish brown (10YR 3/2) moist;
weak fine granular structure; loose, very friable; 30
percent large stones and cobbles; mildly alkaline;
clear smooth boundary.
AC -6 to 12 inches; dark grayish brown (10YR 4/2) very
stony loam, very dark grayish brown (10YR 3/2)
moist; weak, fine subangular blocky structure; slight-
ly hard, friable; 40 percent large stones and cobbles;
calcareous; mildly alkaline; gradual smooth bound-
ary.
92
• •
TABLE 4. --ACREAGE AND PROPORTIONATE EXTENT OF THE SOILS
SOIL SURVEY
Map
symbol
Soil name
1 ;Almy Variant loam, 25 to 65 percent slopes
2 ;Arle-Ansari-Rock outcrop complex, 12 to 65 percent slopes
3 :Arvada loam, 1 to 6 percent slopes
^4.4 :Arvada loam, 6 to 20 percent slopes
5 :Ascalon fine sandy loam, 1 to 6 percent slopes
6 :Ascalon fine sandy loam, 6 to 12 percent slopes
7 :Ascalon -Pena complex, 6 to 25 percent slopes
8 Atencio-Azeltine complex, 1 to 3 percent slopes
9 Badland
10 Begay sandy loam, 1 to 6 percent slopes
11 IBegay sandy loam, 6 to 12 percent slopes
12 IBucklon-Inchau loams, 25 to 50 percent slopes
13 :Chilton channery loam, 3 to 6 percent slopes
14 ;Chilton channery loam, 6 to 12 percent slopes
15 :Chilton channery loam, 12 to 25 percent slopes
16 ;Cimarron loam, 2 to 12 percent slopes
17 ;Cochetopa loam, 9 to 50 percent slopes
18 ;Cochetopa-Jerry complex, 12 to 25 percent slopes
19 :Cochetopa-Jerry complex, 25 to 50 percent slopes
20 ICryaquolls, nearly level
21
22
23
24
;Cushman-Lazear stony loams, 15 to 65 percent slopes
:Dateman gravelly loam, 30 to 50 percent slopes
;Detra fine sandy loam, 12 to 25 percent slopes
;Dollard -Rock outcrop, shale, complex, 25 to 65 percent
I slopes 7,400 ; 0
25 :Etoe loam, 15 to 50 percent slopes 6,300 ; 0
26 ;Farlow-Rock outcrop association, steep 7,600 ; 0
27 :Halaquepts, nearly level 2,000 , 0
28 IHeldt clay loam, 1 to 3 percent slopes 900 ; 0
29 IHeldt clay loam, 3 to 6 percent slopes 2,000 : 0
30 IHeldt clay loam, 6 to 12 percent slopes 3, 700 : 0
31 IHeldt clay loam, 12 to 25 percent slopes 2,160 ; 0
32 ;Holderness Variant clay loam, 6 to 25 percent slopes 2,100 ; 0
33 IIldefonso stony loam, 6 to 25 percent slopes 2,000 ; 500
34 lIldefonso stony loam, 25 to 45 percent slopes 10,150 : 850
35 IIldefonso-Lazear complex, 6 to 65 percent slopes 6,700 : 0
36 ,Irigul channery loam, 9 to 50 percent slopes 14,800 : 0
37 :Irigul channery loam, 50 to 75 percent slopes 2,800 ; 0
38 lIrigul-Starman channery loams, 5 to 50 percent slopes 4,700 ; 0
39 ;Jerry loam, 12 to 50 percent slopes 28,700 ; 0
40 ;Kim loam, 3 to 6 percent slopes 2,100 0
41 ;Kim loam, 6 to 12 percent slopes 1,200 : 0
42 ILamphier loam, 15 to 50 percent slopes 21,800 : 0
43 :Limon silty clay loam, 3 to 12 percent slopes X600 ; 0
44 IMorval loam, 3 to 12 percent slopes 2,100 : 0
45 IMorval-Tridell complex, 6 to 25 percent slopes 15,200 : 0
46, INihill channery loam, 1 to 6 percent slopes 2,500 ; 200
47 ,Nihill channery loam, 6 to 25 percent slopes 6,300 : 0
48 :Northwater loam, 15 to 65 percent slopes 16,100 ; 0
49 :Olney loam, 1 to 3 percent slopes 800 ; 0
50 :Olney loam, 3 to 6 percent slopes 2,600 : 0
-41,61 :Olney loam, 6 to 12 percent slopes 5,300 : 0
52 ,Parachute loam, 25 to 65 percent slopes 8,700 ; 0
53 :Parachute -Rhone loams, 5 to 30 percent slopes 38,100 : 0
54 :Potts loam, 1 to 3 percent slopes 1,900 ; 0
55 :Potts loam, 3 to 6 percent slopes 1
56 :Potts loam, 6 to 12 percent slopes 151150 : 550
57 :Potts-Ildefonso complex, 3 to 12 percent slopes 3,800 : 0
58 'Potts-Ildefonso complex, 12 to 25 percent slopes 7,300 : 100
59 Potts-Ildefonso complex, 25 to 45 percent slopes 2,750 : 50
60 Rhone loam, 5 to 30 percent slopes 7,800 : 0
61 Rhone loam, 30 to 70 percent slopes 5,300 ; 0
62 Rock outcrop-Torriorthents complex, very steep 25,700 : 0
63 :Silas loam, 3 to 12 percent slopes 2,800 : 0
64 ;Tanna silty clay loam, 25 to 45 percent slopes 3,700 ; 0
65 ;Torrifluvents, nearly level 7,600 ; 0
66 :Torriorthents-Camborthids-Rock outcrop complex, steep 51,600 ; 200
-1.67 ITorriorthents-Rock outcrop complex, steep 66,850 : 950
68 :Vale silt loam, 3 to 6 percent slopes 4,000 ; 0
1
Garfield ;
County
Acres
Mesa
County
Acres
2,000 i 0
10,200 i 0
10,000 ; 0
5,300 : 0
1,200 : 0
2,800 : 0
6,300 : 0
1,700 I 0
9,500 ; 0
600 : 0
900 : 0
25,150 : 2,350
900 ; 0
700 : 0
600 : 0
1,600 ; 0
16,600 ; 500
1,200 ; 0
14,700 : 0
300 : 0
22,000 ; 0
9,600 ; 0
3,800 : 0
See footnote at end of table.
Total --
Area ;Extent
Acres ; Pct
:
RIFLE AREA, COLORADO
•
•
TABLE 4. --ACREAGE AND PROPORTIONATE EXTENT OF THE SOILS --Continued
Map
symbol
69
70
71
72
Soil name
Vale silt loam, 6 to 12 percent slopes
;Vale silt loam, 12 to 25 percent slopes
;Villa Grove-Zoltay loams, 15 to 30 percent slopes
;Wann sandy loam, 1 to 3 percent slopes
Water
;
,
Total
Garfield
County
Acres
7,500
2,000 ;
12,650
2,000
1,700
Mesa
County
Acres
Total --
93
Area ;Extent
Acres ; Pct
0 7,500
0 2,000
13,100
2,000
1,700
450
; 0
; 0
622,928 ; 6,932 629,860 100.0
1.2
0.3
2.1
0.3
0.3
* Less than 0.1 percent.
• •
RIFLE AREA, COLORADO 103
TABLE 7. --BUILDING SITE DEVELOPMENT
[Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"slight," "moderate," and "severe." Absence of an entry indicates that the soil was not rated]
Soil name and ; Shallow
map symbol : excavations
Dwellings
without
basements
Dwellings
with
basements
Small
commercial
buildings
Local roads
and streets
:
1 ;Severe: ;Severe: :Severe: ;Severe: ;Severe:
Almy Variant ; slope. ; slope. I slope. i slope. slope,
i i i : low strength.
2*: i , 1
Arle :Severe: :Severe: ;Severe: ;Severe: :Severe:
slope, ; slope,1 slope, ; slope, ; slope,
1 large stones. 1 large stones. 1 large stones. : large stones. : large stones.
: : : : :
Ansari ;Severe: :Severe: ;Severe: :Severe: :Severe:
I slope, I slope, I slope,; slope, 1 slope,
1 depth to rock. : depth to rock. 1 depth to rock. 1 depth to rock. : depth to rock.
Rock outcrop. . : 1 1 1
: 1 :1 1
3 ;Moderate: :Severe: :Severe: :Severe: ;Severe:
Arvada ; too clayey. 1 shrink -swell. : shrink -swell. : shrink -swell. : shrink -swell,
: : : : : low strength.
: 1 : :
. 4 :Moderate: :Severe: :Severe: :Severe: :Severe:
Arvada 1 slope, : shrink -swell. : shrink -swell. : slope, : shrink -swell,
too clayey. : 1 1 shrink -swell. 1 low strength.
: : : : :
5 :Slight :Moderate: :Moderate: :Moderate: :Moderate:
Ascalon : 1 low strength. 1 low strength. 1 low strength. : frost action,
: : : : : low strength.
: : : : :
6 ;Moderate: :Moderate: ;Moderate: ;Severe: :Moderate:
Ascalon 1 slope. : slope, ; slope, : slope. : slope,
1 : low strength. 1 low strength. . : frost action,
: : 1 : low strength.
1
7*: : 1 : :
Ascalon ;Moderate: :Moderate: :Moderate: :Severe: :Moderate:
: slope. : slope, : slope, : slope. : slope,
: : low strength. : low strength. : : frost action,
: : : : : low strength.
Pena :Severe: :Severe::Severe: :Severe: :Severe:
: slope, : slope, : slope, : slope, : slope,
: large stones. : large stones. : large stones. : large stones. : large stones.
: : : : :
8*: : : : : :
Atencio :Severe: :Slight :Slight :Slight :Slight.
1 cutbanks cave. : : : :
: : :
Azeltine :Severe: :Moderate: :Moderate: :Moderate: :Moderate:
1 cutbanks cave, 1 large stones. : large stones. 1 large stones. : large stones.
: large stones. : 1 : :
: : : : :
9* : : : : :
Badland ; : ; ; :
: : : : :
10 ;Moderate: :Slight :Moderate: :Slight :Slight.
Begay : large stones. : : large stones. : :
: 1 : :
11 :Moderate: :Moderate: :Moderate: ;Severe: :Moderate:
Begay: slope, : slope. : slope, : slope. : slope.
large stones. : : large stones. : :
: :
1 :
12*: : : : :
Bucklon ;Severe: :Severe: :Severe: ;Severe: Severe:
1 depth to rock, 1 depth to rock, 1 depth to rock, : depth to rock, depth to rock,
slope. 1 slope. : slope. : slope. slope,
: : : : low strength.
See footnote at end of table.
106
Soil name and
map symbol
• •
TABLE 7. --BUILDING SITE DEVELOPMENT --Continued
Shallow
excavations
1 '
1
1
43
:Moderate: ;Severe: ;Severe:
Limon :Severe: :Severe:
too clayey. 1 shrink -swell. 1 shrink -swell. : shrink -swell. ; low strength,
' : shrink -swell.
44;Slight;Slight ;Moderate:
Moderate: Moderate:
shrink -swell. I shrink -swell. 1 slope, Moderate:1' I shrink -swell. low strength, ngth,
j I , shrink-swell,1
45': I 1 ; frost action.
Morval ;Moderate: 1 :
,Moderate:
, :Moderate: ,
: slope. : shrink -swell, I shrink -swell, ;S slope. Moderate:
slope. 1 slo e. P � low strength,
1 P ' 1 shrink -swell,
, ,
1 1 11 slope.
Tridell ;Severe:;Severe: ;Severe: 1
1 slope, ; slope, ; slope, Severe: Severe:
1 large stones. 1 large stones. 1 large stones. ; large stones, slope,
46 1 1 ( g 1� large stones.
^
Severe: (Slight 1
Nihill ; cutbanks cave. 1 :Slight ;Slight :Slight.
1 ,
47 ;Severe: • '
Nihill ; slope, ;Sslore. Severe: Severe: :Severe:
1 cutbanks cave. I P I slope. ; slope. ; slope.
48 1 '
Severe: ;Severe: :Severe:
Northwater 1 slope. 1 slope. : . slo e:Severe: ;Severe:
P I slope. I slope.
401ne 9 Slight ;Slight :Slight
Y 1 , Slight.
, 1
50 ;Slight ;Slight
Olney : Slight Slight :Slight.
1
_ 1 1
_� 51 Moderate: ;Moderate: ;Moderate: Severe:
Olney 1 slope. ; slope. ; slope. Moderate:
1 P slope. slope.
52 ,Severe: ;Severe: 1 :
slope. Severe: Severe:
Parachute : slope,
;Severe:
: depth to rock. I P :lope
slope, slope. s.
, depth to rock.
53': 1
,
1 , 1 1
Parachute,
;Severe: ;Severe: 'Severe:
P
I slope, 1 slope. I;Severe: ;Severe:
: depth to rock. I slope, 1 slope. : slope.
1 depth to rock.
Rhone
;Moderate: ;Moderate: 1
,Moderate: ,Severe: ;Moderate:
1 depth, to rock. I shrink -swell. ' slope, ; slope. ; slope,
;; depth to rock, : frost action
1 shrink -swell. , '
54 1 I shrink -swell.
:Slight ;Slight ; 1
Potts 1 Slight Slight :Slight.
55 ' ' 1 1 ,
:Slight :Sli ht . 1
Potts 1 g Slight ,Moderate: ;Slight.
1 1 slope. 1
56 ;Moderate: ;Moderate:
Potts ;Moderate: Severe:
, slope. 1 slope. , Moderate:
57': 1 P , slope. slope. 1 slope.
1
1 1
Potts ;Slight ;Slight ; 1
1 1 g Slight Moderate: :Slight.
1 1 , slope. 1
Ildefonso ;Severe: ; 1 '
,Severe: ,Severe: ;Severe:
1 large stones. I large stones. ; large stones.;Severe:
I slope,
, 1� P 1 large stones.
I , large stones. 1
1
1 1
Dwellings
without
basements
Dwellings
with
basements
Small
commercial
buildings ,
SOIL SURVEY
Local roads
and streets
See footnote at end of table.
E AREA, COLORADO
TABLE 7. --BUILDING SITE DEVELOPMENT --Continued
107
oil name and ; Shallow , Dwellings , Dwellings Small ; Local roads
map symbol : excavations : withoutwith commercial ; and streets
: basements basements buildings
:
I
1
59*: ; :
is ;Severe: ;Severe: :Severe: :Severe: ;Severe:
: slope. : slope. ; slope. : slope. : slope.
I 1 + '
efonso :Severe: ;Severe: ;Severe: :Severe: ;Severe:
slope, i slope, : slope, : slope, i slope,
: large stones. : large stones. I large stones. : large stones.
1 large stones.
I:
I 1 '
61 ;Severe: :Severe: ;Severe: :Severe: ;Severe:
ne : slope. . slope. . slope. . slope. ; slope.
I: : : :
1
:k outcrop. : :
-riorthents. : I :
: I
: ` ; : :
:Moderate: :Severe: ;Severe: :Severe: :Severe:
Las : floods. : floods. : floods. : floods. ; floods.
1 :
;Severe: :Severe: ;Severe: :Severe: :Severe:
Ana ; slope. : slope. . slope. : slope. : slope,
: low strength.
I
'1
' 1
, '
, ;
: 1 '
rrifluvents : 1 ;
1' ' ' :
1 , 1
.
'
rriorthents. : '
1 1
: ' :
mborthids. : : '
I
ck outcrop. :
I1 ' , I
1 1 I
1
. : : 1 i
rriorthents. : 1
I : : : :
,
ck outcrop. : : ' '
I
,
:Slight :Slight ;Slight :Moderate: :Moderate:
le ; : :I slope. : low strength.
:
I 1 ' '
;Moderate: :Moderate: ;Moderate: :Severe: ;Moderate:
le : slope. : slope. I slope. ; slope. ; slope,
' . ' : low strength.
1 1 : 1
, 1 :
:Severe: :Severe: :Severe: ;Severe: :Severe:
le : slope. : slope. . slope. : slope. : slope.
1
1 :
lla Grove :Severe: :Severe: :Severe: :Severe: :Severe:
: slope. i slope. ; slope. : slope. ; slope,
. ; : low strength.
: 1 1 ; 1
>ltay :Severe: :Severe: :Severe: :Severe: :Severe:
: slope. : slope, ; slope, ; slope, : slope,
shrink -swell. : shrink -swell. ; shrink -swell. : low strength,
1
I : ; : ; shrink -swell.
I; ; 1 i
i
:Severe: ;Severe: :Severe: :Severe: :Severe:
Inn : wetness. : floods. : floods, : floods. i floods,
: ; wetness. : i frost action.
1
; , :
* See description of the map unit for composition and behavior characteristics of the map unit.
1
• •
108
SOIL SURVEI
TABLE 8. --SANITARY FACILITIES
(Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"slight," "moderate," "good," "fair," and other terms. Absence of an entry indicates that the soil was
not rated]
Soil name and
map symbol
Septic tank
absorption
fields
Sewage lagoon
areas
Trench
sanitary
landfill
Area
sanitary
landfill
Daily cover
for landfill
1 1S ;
Almy Variant
:Severe: ;Severe: :Severe: ;Severe: ;Poor:
slope, ; slope. ; slope.
peres slowly. ; 1 ! slope. : slope.
I
2*: I
Arleevere: ,
;Severe: ; slope, ;Severe: Severe: ;Poor:
1 Peslope, ; slope. slope,
depth to rock. ; large stones. 1 depth to rock.
large stones,
, 1 area reclaim.
Ansari ' I
Severe: Severe: ;Severe: ;Severe: Poor:
slope, ; slope, : slope, ; slope. ; slope,
: depth to rock. 1 depth to rock. ; depth to rock.
thin layer,
; ; � ; area reclaim.
Rock outcrop.
,
3 , 1 I
;Severe: ;Moderate: '
Moderate:
ta
clayey.
Y•Arvada I percs slowly. 1 slope. Slight
,; too clayey. ,Foro:
_� 4 ;Severe: 1 ;
,Severe: ,Moderate: '
Arvada percs slowly. 1 slope. Moderate: Fair:
P , too clayey. ; slope. ; slope,
5 1 I too clayey.
Slight ,Severe: ;Severe: ;Severe:
Severe: Good.
1 ; seepage. ; seepage. ; seepage.
6 ;Moderate: ;Severe: I
Ascalon ;Severe: ;Severe:
Fair:
slope. , slope, ; seepage. ; seepage. ;
seepage. slope.
7*: ;
; , 1
Ascalon Moderate: ;Severe: ;Severe: .
Severe: ;Fair:
slope. ; slope, ; seepage. 1 seepage. ; slope.
; seepage.
Pena ;Severe: . ' ;
slopeSevere: Severe: ;Severe: ;Poor:
P , slope, 1 large stones. I slope. ; slope,
large stones. ; large stones.
8* ; large stones.
I I
Atencio ;Slight ;Severe: ;Severe: g ;Severe:
' 1 seepage. I seepage. 1 li ht
, large stones.
I
Azeltine ;Severe:
,Severe: ;Severe: ,Severe:
; large stones. 1 seepage, ; see a e Poor:
f seepage,
, seepage. I seepage,
large stones. ; large stones. ;
9 ; I large stones.
1 ;
Badland ; ; ; ;
10 '
;Moderate: ;Severe: '
Begay I large stones. 1 seepage. ;SSevere: ;Fair:
I seepage.1 seepage. ; large stones.
11 ;Moderate: ;Severe: 1 '
Begay : slope, I slope, 'S seepage. 1Sseer Fair:
, large stones. 1 seepage. ; P g 1 slope,
12*: ; 1 large stones.
1 I 1 1 1
Bucklon {Severe: ;Severe: ;Severe: I
1 depth to rock, I depth to rock, 1 depth to rock, Ssslope• ope. 1Poor:
1 slope, ; slope. ; slo thin layer,
1 percs slowly. ; slope.
, I slope,
1 ; area reclaim.
1
,
See footnote at end of table.
IFLE AREA, COLORADO
TABLE 8. --SANITARY FACILITIES --Continued
111
Soil name and Septic tank ; Sewage lagoon ; Trench Area Daily cover
map symbol absorption : areas I sanitary ; sanitary ; for landfill
fields : ; landfill ; landfill
:
9 ;Severe: :Severe: :Severe: ;Severe: ;Poor:
Jerry ; percs slowly, : slope. . slope. slope. P
slope. ; sloe.
; ;
: ;
0 ;Moderate: :Moderate: :Slight ;Slight
Good.
Kim ; percs slowly. : slope, ; '
1 1 seepage. I '
: ' '
1 ;Moderate: ;Severe:;Slight :Moderate: ;Fair:
Kim , slope, , slope.
; percs slowly. ; 1
; slope.
' I slope.
, ;
2 ;Severe: :Severe: ;Severe: :Severe: ;Poor:
Lamphier : slope. I slope. ; slope. I slope. ; slope.
3 ;Severe: :Moderate: ;Severe: :Slight ;Poor:
Limon : peres slowly, : slope. : too clayey. ; ; too clayey.
1 slope. , ,
1
1 : ,
4 ;Moderate: :Severe: :Moderate: ;Slight ;Fair:
Morval ; percs slowly, I slope. I too clayey. : ; too clayey.
slope. ; 1
,
15*: ,
Morval :Moderate:;Severe: :Moderate: :Moderate: ;Fair:
: percs slowly, ; slope. : too clayey. ; slope. ; slope,
; too clayey.
: slope. 1 . . i
Tridell ;Severe: :Severe: :Severe: :Severe: ;Poor:
slope, : seepage, : seepage, : slope, ; slope,
: large stones. ; slope, I large stones. ; seepage. ; large stones.
' : large stones. , . .
, 1 ; ;
46 :Slight ;Severe: :Severe: ;Severe: ;Poor:
Nihill ; seepage. : seepage. 1 seepage. ; small stones.
47 Severe: Severe: :Severe: :Severe: ;Poor:
Nihill slope. slope, I seepage. slope, ; slope,
seepage. , seepage. : small stones.
48 Severe: Severe:;Severe: Severe: :Poor:
Northwater slope, ; slope. ; slope, slope. ; slope
depth to rock. ; 1 depth to rock. ;
y , , ,
49, 50 Moderate: :Moderate: :Slight :Slight
Olney percs seepage, ;Fair:
slowly.; e : ; small stones.
P g
: slope. ;
Moderate: :Severe: ;Slight ;Moderate: ;Fair:
SOlney percs slowly, ; slope. ; ; slope. : smaall stones,
sslope. ; P
; ; ,
52 ,Severe: :Severe: :Severe: :Severe: ;Poor:
Parachute : slope, ; slope, ; slope, ; slope, ; slope,
; depth to rock. ; depth to rock, I depth to rock, : seepage. : small stones,
; seepage..I seepage.1
1 area reclaim.
; ;
53*: ' '
Parachute :Severe: :Severe: :Severe: ;Severe: :Poor:
: slope, : slope, ; depth to rock, I slope, ; slope,
: depth to rock. : depth to rock, seepage. : seepage. : small stones,
seepage. : : ; area reclaim.
Rhone ;Severe: :Severe: :Severe: :Moderate: ;Fair:
: depth to rock. I slope. 1 depth to rock. : slope. : amall stones,
1 1 '
1 thin layer,
,
, slope.
1 ' : ;
See footnote at end of table.
112
• •
TABLE 8. --SANITARY FACILITIES --Continued
SOIL SUAVE,
Soil name and
map symbol
Septic tank
absorption
fields
Sewage lagoon
areas
Trench
•
sanitary
landfill
Area
sanitary
landfill
Daily cover
for landfill
54, 55
Potts
56
Potts
57*:
Potts
Ildefonso
58*:
Potts
Ildefonso
59*:
Potts
Ildefonso
60
Rhone
61
Rhone
62*:
Rock outcrop.
Torriorthents.
63
Silas
64
Tanna
65'.
Torrifluvents
66+:
Torriorthents.
Camborthids.
Rock outcrop.
67':
--� Torriorthents.
Rock outcrop.
:Moderate:
: percs slowly.
:Moderate:
I slope,
: seepage.
Moderate: !Severe:
slope, : slope.
percs slowly.
Moderate: :Severe:
percs slowly. I slope.
Severe: :Severe:
slope, I slope,
large stones. ' seepage.
Severe:
slope.
Severe:
slope,
large stones.
Severe:
slope.
Severe:
slope.
Severe:
slope,
seepage.
Severe:
slope.
Severe: :Severe:
slope, I slope,
large stones. 1 seepage.
Severe: :Severe:
depth to rock, I slope.
slope.
Severe: :Severe:
depth to rock, I slope.
slope.
Severe: :Severe:
floods. 1 floods.
Severe: :Severe:
depth to rock, : depth to
percs slowly, : slope.
slope. 1
See footnote at end of table.
.
:Slight :Slight Good.
I I
I ,
I
;Slight :Moderate: Fair:
: I slope. slope.
: !
,I
1 I
1 I
:Slight :Slight Good.
:
:Severe: :Moderate: :Poor:
large stones. : slope. 1 large stones.
I
I 1
I
:Moderate: :Severe: :Poor:
I slope. : slope. : slope.
I 1 1
:Severe: :Severe: :Poor:
I large stones, : slope, : slope,
seepage. : seepage. I large stones.
I , :
: :
:Severe: :Severe: :Poor:
I slope. 1 slope. : slope.
1 I
:Severe: :Severe: :Poor:
: slope, : slope, : slope,
large stones, : seepage. : large stones.
I seepage. : .
I : !
:Severe: :Severe: :Poor:
depth to rock. : slope. : slope.
I
I : :
1 :
!
:Severe: :Severe: :Poor:
slope, I slope. : slope.
1 depth to rock. 1 .
: I I
1
! I
I
I ,
: I
I
!
:Severe: :Severe: :Good.
: floods. I floods.
, 1
:Severe: :Severe: Poor:
rock, 1 depth to rock, : slope. : slope,
I slope. : : thin layer,
: : : area reclaim.
,I
1 1
, I
1
I
I
I
I
1
I
I
I
I
1
1
I
I
I
I
I
I
I
1
I
I
1 I
114
r •
SOIL SURVEY
TABLE 9. --CONSTRUCTION MATERIALS
[Some terms that describe restrictive soil features are defined in the Glossary. See text for definitions of
"good," "fair," and "poor." Absence of an entry indicates that the soil was not rated]
Soil name and
map symbol
Roadfill ; Sand
Gravel ; Topsoil
1 :Poor: ;Unsuited ;Unsuited
Almy Variant; slope, ; Poor:
low strength. ; , j slope.
2': 1
Arle !Poor: ;Unsuited: ;Unsuited: ;Poor:
I slope, ; thin layer. ; thin layer, ; slope
; thin layer, , ; g'
area reclaim. ; '
1 large stones.
1
1 , ; 1
Ansari ;Poor: :Unsuited
: slopeUnsuited Poor:
; thin layer, ' ; slope,
1 1 large stones,
area reclaim. ; ; 1 area reclaim.
1 ; :
Rock outcrop. ; ; 1
;
1 , 1 1
3, 4 :Poor: ;Unsuited: ;Unsuited: ;Poor:
Arvada ; shrink -swell, ; excess fines. : excess fines. i too clayey,
; low strength. ;
excess sodium.
1 , ; I
5 Poor: :Poor: :Unsuited ;Fair:
Ascalon ! low strength. ; excess fines. ; : too clayey.
6 (Poor:;Poor: ;Unsuited ;Fair:
Ascalon 1 low strength. ; excess fines. ; ; slope,
I
too clayey.
7': 1 , I
I :
Ascalon ;Poor: ;Poor:;Unsuited ;Fair:
; low strength. ; excess fines. ; ; slope,
' : too clayey.
; 1
Pena ;Poor: ;Unsuited
Unsuited Poor:
large stones. ; ; ; ; slope,
I ; large stones.
I ; I
8': 1
: I
Atencio ;Good ;Poor: :Poor: ,Fair:
1 ; large stones. ; large stones. ; small stones.
1
1
Azeltine
;Fair: ;Poor: ;Poor:. ;Poor:
: large stones. ; large stones. ; large stones. i=ll stones.
: ;
9*. I
Badland ;
;
10 ;Fair:;Poor: ;Unsuited :Good.
Begay : large stones. ; excess fines, , ,
: 1 large stones. :
•
11 :Fair: :Poor: ;Unsuited ;Fair:slop
Begay ; large stones. 1 excess fines. ; ; e.
I ; .
12t: ; 1
Bucklon ;Poor: ;Unsuited :Unsuited 'Poor:
1 thin layer, ; ; ; slope
slope, ; : ; area reclaim,
area reclaim. . ; ; thin layer.
See footnote at end of table.
IFLE AREA, COLORADO
TABLE 9. --CONSTRUCTION MATERIALS --Continued
117
Soil name and
map symbol
Roadfill
Sand
Gravel ; Topsoil
'
9 :Poor: ;Unsuited ;Unsuited :Poor:
Jerry : shrink -swell, ,
' . : slope,
slope, ; , I too clayey,
: low strength. ; : : large stones.
: : : :
:Fair: ;Unsuited ;Unsuited :Good.
<im : low strength. : 1
1 :Fair: :Unsuited ;Unsuited
Fair:
:
im I low strength. : : : slope.
:Poor: :Unsuited :Unsuited :Poor:
.amphier : slope. : : : slope.
:
:
3 :Poor: :Unsuited :Unsuited :Poor:
:
;mon I low strength, : : : too clayey.
: shrink -swell. '
: :
, :Fair:
Unsuited ,Unsuited ,Good.
lorval : low strength, , ,
: shrink -swell, ,
I frost action. '
i
' ' : I
lorval :Fair: :Unsuited
:Unsuited :Fair:
: low strength, :
: : slope.
: shrink -swell, ,
: frost action. :
118
• •
TABLE 9. --CONSTRUCTION MATERIALS --Continued
SOIL SURVEY
Soil name and ; Roadfill
map symbol
Sand
Gravel Topsoil
54, 55 :Fair:
Potts : low strength.
56 :Fair:
Potts : low strength.
57*:
Potts :Fair:
: low strength.
Ildefonso ;Poor:
1 large stones.
58*:
Potts :Fair:
1 slope,
low strength.
Ildefonso ;Poor:
large stones.
59*:
Potts :Poor:
1 slope.
Ildefonso ;Poor:
1 slope,
1 large stones.
60 ;Fair:
Rhone 1 slope,
thin layer,
1 low strength.
61 :Poor:
Rhone 1 slope.
62*:
Rock outcrop.
Torriorthents.
;
63 :Fair:
Silas : low strength.
64 :Poor:
Tanna 1 slope,
low strength,
1 thin layer.
65*.
Torrifluvents
66':
Torriorthents.
Camborthids.
Rock outcrop.
_.a 67*:
Torriorthents.
Rock outcrop. 1
1
See footnote at end of table.
I
:Unsuited ;Unsuited :Fair:
1 small stones.
;Unsuited
,Unsuited ;Fair:
: ; 1 slope,
: : 1 small stones.
II
I I ,
1 ; '
1
:Unsuited
(Unsuited :Fair:
; : small stones.
,
,
:Unsuited :Unsuited :Poor:
: : 1 large stones.
; 1
1
1 , 1,
:Unsuited :Unsuited ;Poor:
; : slope.
I
: ;
:Unsuited :Unsuited :Poor:
1 i : slope,
; : : large stones.
;
:Unsuited :Unsuited ;Poor:
: ; I slope.
:
;Unsuited :Unsuited :Poor:
I : 1 slope,
: : 1 large stones.
: 1 I
1
:Unsuited :Unsuited :Poor:
: 1 : slope.
:
1
1
I
1 :
;Unsuited :Poor:
: I slope.
1
: ;
I I
I 1
I I
; :
1 I
:Unsuited :Good.
I I
:
:Unsuited :Poor:
; ; slope,
: I too clayey.
I I
: :
: ;
I I
II
I I
I ,
I ,
1 ;
: ;
II
I I
I I
I 1
I :
1
:Unsuited
1
;Unsuited
;Unsuited
1
120
TABLE 10. --WATER MANAGEMENT
SOIL SURVEY
(Some terms that describe restrictive soil features are defined in the Glossary. Absence of an entry indicates
that the soil was not evaluated)
Soil name and ; Pond
map symbol : reservoir
areas
Embankments,
dikes, and
levees
Drainage
: Irrigation
1 Terraces and
; diversions
Grassed
waterways
Almy Variant
2*:
Arle
3
4
5
6
Ansari
Rock outcrop.
Arvada
Arvada
Ascalon
Ascalon
7*:
Ascalon
Pena
8*:
Atencio
Azeltine
9*.
Badland
10
Begay
11
Begay
12*:
Bucklon
Inchau
13
Chilton
:Slope
;Slope,
: seepage,
I depth to rock.
:Slope,
: depth to rock.:
:Favorable
:Piping,
I thin layer,
: large stones.
;
;Thin layer
1
1
:Favorable
(Slope
:Seepage,
: slope.
:Seepage,
1 slope.
:Seepage,
I slope.
:Excess
:Excess
:Favorable
:Favorable
1
:Favorable
1
:Slope
(Slope,
1 depth
I large
:Slope,
: depth
1
to rock,
stones.
to rock.
;Slope
;Large stones,
; slope,
: droughty.
:Droughty,
I slope,
rooting depth.
:Slope
:Slope.
;Large stones, ;Large stones,
1 slope, ; slope,
: depth to rock.: droughty.
:Slope, :Slope,
: depth to rock.: rooting depth,
I droughty.
I 1
I 1 1 C
sodium --;Peres slowly, ;Slope, ;Peres slowly ---:Peres slowly,
1 excess sodium,: percs slowly, I excess sodium.
I slope. : excess sodium. ;
: ;
sodium --:Peres slowly, :Slope,
I:Slope, :Slope,
: excess sodium,: percs slowly, : peres slowly. I percs slowly,
I slope. : excess sodium.; I excess sodium.
I 1 : :
:Slope :Slope :Slope ;Slope.
: : ;
1 1 ;
;Slope :Slope :Slope :Slope.
I
I I I I
I i : :
: : : :
:Slope ;Slope :Slope :Slope.
I
;
1
i
:Slope,:Slope, :Slope,
stones. 1 large stones, : large stones. ; large stones,
I droughty. I I droughty.
: i ;
: : :
;Slope, :Slope, :Large stones, ;Droughty,
1 cutbanks cave,: droughty, 1 soil blowing. I large stones.
I large stones. I soil blowing. I :
I 11
1 I
:Slope, ;Large stones, ;Droughty,
; seepage, : soil blowing. : large stones.
: droughty. ; ;
; ; 1
11 I
1 1 I
I ; I
1 I
;Slope :Slope :Favorable ;Favorable.
1
I 1
: ; ;
:Slope :Slope :Slope.
1
: ; ; ;
1 1 1
;Depth to rock, ;Rooting depth, ;Slope, :Slope,
: slope. : slope. : depth to rock.: rooting depth.
1 1
I 1 1 I
:Slope, :Slope, :Slope, ;Slope,
; depth to rock.; rooting depth.: depth to rock.; rooting depth.
1 1
1 I I
: I
:Droughty, ;Favorable ;Droughty.
: slope. : :
: I
I
:Slope, :Large stones ---:Slope,
I large stones. : : large
I
1 ;
: ;
:Seepage,
: slope.
:Slope,
1 seepage.
1
;Slope,
: seepage.
;Slope,
1 seepage.
:Seepage,
1 large stones
;Seepage,
I large stones
:Piping,
: seepage.
;Piping,
1 seepage.
:Depth to rock, :Thin
I slope.
:Slope,
I depth to
I seepage.
:Seepage,
I slope.
layer
;Thin layer
rock,:
:Seepage
See footnote at end of table.
Slope,
large stones.
:Slope
:Slope
122
• •
TABLE 10. --WATER MANAGEMENT --Continued
SOIL SURVEY
Soil name and
map symbol
Pond : Embankments,
reservoir : dikes, and
areas ; levees
Drainage ; Irrigation : Terraces and ; Grassed
: diversions ; waterways
33, 34 :Seepage, ;Large stones ---:Slope, Slope
Ildefonso : slope. P P Large stones, ;Slope,
P : large stones. : large stones, : slope. : large stones,
1 : droughty. , ; droughty.
35*: :
, I : 1
Ildefonso ;Seepage, :Large stones ---:Slope, :Slope, :Large stones, ;Slope,
1 slope.
large stones. : large stones, , slope. : large stones,
' , : : droughty. :
1 : , droughty.
Lazear :Depth to rock, :Thin layer :Depth to rock, :Rooting depth, ;Depth to rock, :Slope,
, slope. , , slope. 1 slope. : slope. : rooting depth.
36, 37 ,Slope, :Thin layer :Depth to rock :Slope, ;Depth to rock
Irigul : depth to rock.: ;Slope,
rooting depth,: slope. : rooting depth,
: :
: ; droughty. : i droughty.
38": : :
Irigul :Slope, :Thin layer :Depth to rock :Slope,
: depth to rock.: p Depth to rock, ,Slope,
: rooting depth,, slope. : rooting depth
' : : droughty. : : droughty.
Starman :Slope, :Thin layer :Depth to rock :Slope, :Slope, :Slope,
: depth to rock., : : rooting depth.: depth to rock.: rooting depth.
: ,
39 :Slope :Hard to pack ---:Slope, :Slo e
Jerry , I ope, ,Slope, Slope,
peres slowly. : percs slowly. : percs slowly. : peres slowly.
40
Kim :Sseee, e, ;Piping :Slope lSlope :Favorable :Favorable.
Ilop
P g
41 :Slope :Piping ;Slope :Slope :Slope :Slope.
Kim : seepage. ,
42 ,
Lamphier :Sseepage. ;Piping Slope Slope :Slope :Slope.
:
1 i : ,
43 :Slope :Hard to pack---:percs slowly, :Peres slowly, :Peres slowly ---:Peres slowly.
LimDn : : I slope. slope. :
44 :Slope, :
Morval : seepage. ;Favorable Slope Erodes easily,easily :Erodes
:Erodes easily.
: slope.
45': :
Morval :Slope, :Favorable :Slope :Erodes easily, Erodes easily :Erodes easily.
I seepage. 1
: slope.
Tridell :Slope, :Large stones, :Slope, :Slope, Slope, :Slope,
: seepage. : seepage. : large stones. : droughty, large stones. I droughty,
: : large stones.
: large stones.
46 I Favorable
Nihill Seepage :Seepage :Slope :Slope, :Droughty.
, droughty.
47 Seepage, :Seepage :Slope:Slope, Slope :Slope,
Nihill slope. : : : droughty. , : droughty.
,
48
Slope, :Thin layer
Northwater 1 seepage. : Slope ,Slope Slope (Slope.
, :: :
49
:Seepage :Favorable :Favorable :Favorable Favorable :Favorable.
Olney
: : :
: : : :
450, 51 :Slope, :Favorable :Slope Slope :Slope :Slope.
Olney : seepage. :
1 :
52 Depth to rock, :Thin layer ;Depth to rock, :Slope, :Depth to rock, :Slope,
Parachute : slope, , : slope. : droughty, : slope. : rooting depth,
: seepage. : : rooting depth.: I droughty.
B Y•
1
See footnote at end of table.
RIFLE AREA, COLORADO
• •
TABLE 10. --WATER MANAGEMENT --Continued
123
Soil name and
map symbol
1
I I 1
Pond : Embankments, Drainage I Irrigation 1 Terraces and
reservoir : dikes, and : diversions
areas 1 levees
Grassed
waterways
:
53*: 1
Parachute :Depth to rock, ;Thin layer :Depth to rock, ;Slope, :Depth to rock, :Slope,
: slope, 1 ; slope. : droughty, : slope : rooting depth,
seepage. 1 I ; rooting depth.; : droughty.
1
i
Rhone ;Slope, ;Thin layer ;Slope, ;Slope, :Slope, ;Slope,
depth to rock.: : depth to rock.: rooting depth.: depth to rock.: rooting depth.
1 1
54, 55 :Seepage :Piping:Slope :Slope, :Erodes easily --:Erodes easily.
Potts : : : : erodes easily.:
I
56 :Seepage :Piping :Slope :Slope, :Slope, :Slope,
Potts : : : : erodes easily.: erodes easily.: erodes easily.
1 : 1 :
:
57*: 1
Potts :Seepage :Piping:Slope :Slope, :Erodes easily --:Erodes easily.
1 1 1 : erodes easily.: :
Ildefonso :Seepage, :Large stones ---:Slope, :Slope, :Large stones, :Slope,
: slope. : 1 large stones. : large stones, I slope. 1 large stones,
: : : droughty. : .1 droughty.
1
58*, 59*: I I I I
Potts :Seepage :Piping :Slope :Slope, :Slope, :Slope,
: erodes easily : erodes easily. erodes easily.
I
1 : I
Ildefonso :Seepage, :Large stones---:Slope,:Slope, :Large stones, :Slope,
: slope. : : large stones. 1 large stones, 1 slope. : large stones,
: : : : droughty. 1 1 droughty.
1
60, 61 :Slope, :Thin layer :Slope, :Slope, :Slope, :Slope,
Rhone 1 depth to rock.: : depth to rock.: rooting depth.: depth to rock.: rooting depth.
1
1 1 I
62*: 1
I
Rock outcrop. 1 :
1
1 1
Torriorthents. 1
1
1 : 1 1
63 :Slope, :Piping:Slope, Slope, :Favorable :Favorable.
Silas : seepage. : : floods. floods. : :
64 (Slope, :Thin layer:Slope, :Slope, :Slope, :Slope,
Tanna I depth to rock.: : percs slowly, I percs slowly, : depth to rock,: erodes easily,
: : : depth to rock.: rooting depth. percs slowly. rooting depth.
1 : 1 :
65!. 1
Torrifluvents :
• •
134
SOIL SURVEY
TABLE 13. --ENGINEERING INDEX PROPERTIES
[The symbol < means less than; > means more than. Absence of an entry indicates that data were not estimated]
Soil name and Depth; USDA texture ; , ;ments ; sieve number --
map symbol ; LiquidIimt ; Plas-
Unified ; AASHTO ; > 3 ; ; ; ; ; limit 1 ticity
;inches; 4 ; 10 ; 40 1 200 i ; index
I Pct -
Classification ;Frag- ; Percentage passing
In'
I
1 0-8 ;Loam CL -ML
Almy Variant 8-34;Clay loam ICL
34-601Flaggy clay ICL
; loam, flaggy ;
; loam. '
I
1 1
2*: 1
1
Arle 0-10;Very stony loam ;SM, GM
' ; ML
10-32;Very stony loam,IGM, SM
; very stony ;
; sandy loam. ;
32 ;Weathered ;
; bedrock. '
I
Ansari ; 0-10:Loam ICL -ML,
I ; SM -SC
;10-18:Loam, stony loam;CL-ML,
1 SM -SC
18 ;Unweathered
; bedrock.
1 , '
1
Hock outcrop. ; ;
1 ;
_AD3, 4 ; 0-3 ;Loam ICL -ML
Arvada ; 3-171Clay, silty clay;CL, CH
I loam.
I
17-601Clay loam, silty1CL
I clay loam. ;
; 1
5, 6 ; 0-5 ;Fine sandy loam ISM
Ascalon ; 5-301Sandy clay loam ISC, CL
;30-60:Sandy loam, ISC,
I sandy clay 1 SM -SC,
; loam, fine I CL
; sandy loam. 1 CL -ML
7*: I '
1 ;
Ascalon ; 0-5 ;Fine sandy loam ;SM
1 5-30:Sandy clay loam ;SC, CL
130-60;Sandy loam, ;SC,
, ; sandy clay ; SM -SC,
1 ; loam, fine ; CL
; ; sandy loam. ; CL -ML
Pena I 0-12;Stony loam;
CL-ML
112-60;Very stony loam,;GM
; ; very stony ;
1 ; sandy loam. ;
8*:
1
Atencio ; 0-11:Sandy loam ISM
111-231Gravelly sandy ;SC
; ; clay loam, ;
; ; sandy clay ;
; 1 loam. 1
;23-281Gravelly sandy ;SM -SC
1 ; clay loam,
I ; gravelly sandy ;
1 1 loam.
1
128-601Sand, gravel, ISP, GP,
; ; and cobbles. ; SP -SM,
1 1 ; GP -GM
1 I
1
See footnote at end of table.
;A-4
;A-6
;A-6
A-4
;A-2
;
i i 1 Pct
1 0-5 90-100190-100180-95 150-75 ; 10-20 ; 5-10
; 0-5 85-100185-100175-95 165-85 ; 30-40 1 10-20
;25-35 75-90 ;75-90 ;60-80 ;50-70 ; 20-30 ; 10-15
I , ;
I
1 1
I,
1
I '
1
;
125-40 60-85 ;55-80 145-70 35-55 ; 1 NP
1
1 1
A-1130-60 40-70 140-70 135-55 120-35 1 1 NP
1 i i i
1' •
1 1
;A-4 15-15 75-100175-90 170-80 145-65 1 20-30 ; 5-10
1 1 ; ; 1 1 1 1
;A-4 ;15-35 175-95 175-90 170-80 45-65 1 20-30 ; 5-10
1 1 ; 1 1 1
1
---
1 I --- ' I 1 1
I '--- 1 1
1 1 1 1 1 I
I I 1 1 1
I
1
I 1
I
1
1A-4 I 0 190-100190-100185-95 ;60-75 ; 15-25 1 5-10
1A-7 1 0 180-100175-100170-100;65-95 1 40-65 1 20-35
I ; I
1A-7 ; 0 180-100175-100170-100155-80 1 40-45 1 20-25
1 ; 1 ; ; 1 1
1
I ; 1 I 1 1
1A-2, A-4; 0 195-100190-100170-95 125-50 115-25 ; NP -5
;A-6 1 0 ;95-100190-100180-100140-55 ; 20-40 1 10-20
IA -4, A-61 0 195-100195-100;75-95 135-65 ; 20-40 5-15
I I 1 I 1
' 1I 1 1 1
1 ;
1 1 I 1
;1 1
1 i I
1 1 I 1 I
IA -2, A-41 0 195-100190-100;70-95 125-50 ; 15-25 NP -5
1A-6 ; 0 195-100190-100;80-100140-55 ; 20-40 10-20
IA -4, A-61 0 195-100195-100;75-95 135-65 ; 20-40 5-15
; ;
,
I I
I I
1 I
1A-4 ; 5-20 175-90 175-85 70-75 150-60 ; 20-40 5-20
1A-1, 135-75 ;40-75 135-70 30-65 120-50 ; 20-30 NP -5
1 A-2, 1 ; ; I ; ;
; A-4 ; 1 ; i1
I ; 1 1 1 1 1
1
1 ; I I I
1A-2 1 0-5 175-100175-100'50-65 120-30 1 15-20 NP -5
;A-2, A-6; 0-5 165-90 ;50-90 35-65 125-45 1 20-30 10-15
; ; ; ; ;
1 1 I 1 1
I 1
1 1
1A-2 1 5-10 150-80 ;50-75 40-65 115-30 ; 15-25 5-10
1 1 1 1
1
1 1 ;
A-1 :30-60 140-60 135-55 10-35 1 0-10 ; --- NP
1 I
; I1 ; r
' 1 1
' I 1 1 1
138
Soil name and
map symbol
43
Limon
44
Morval
45":
Morval
Tridell
46, 47
Nihill
48
Northwater
49, 50, 51
Olney
52
Parachute
• •
SOIL SURVEY
TABLE 13. --ENGINEERING INDEX PROPERTIES --Continued
I 1 Classification 1Frag- ; Percentage passin
Depth; USDA texture ; g
1
1 ;ments ; sieve number-- ;Liquid ; Plas-
1 i Unified I AASHTO >
inches 4 ; limit ; index
10
t
In ; ; 1 Pct 40 1200 index
1 i Pct
;
0-5 ;Silty clay loam ICL IA -60 ; 100 1 1 1 1
5-60ISilty clay loam,1CH, CL1100 195-100;70-90 i 30-50 115-30
IA -7 0 1 100 ; 100 195_100;65-95 ; 40-60 ; 20-40
; silty clay, ;
I clay. i 1 1 1 1 1
' I ' ' I I ' 1 1 I
0-5 1Loam ICL IA -6 I 0-5 190-100185-100180-95 160-75
5-17;Silty clay loam,;CL IA -6 0-10 ;85-100;80-100;65-95 ;60-g0 30-40 , 10-15
1 clay loam. ; ' 30-40 ; 10-15
17-60;Stony clay loam,;CL, SC A-6 stony loam. 115-35 175-85 ;70-80 ;55-70 ;40-60 ; 25-35 ; 10-15
1
I
1 ; ;
1 1 ;
0-5 (Loam1CL IA -6 1 0-5 190-100185-100180-95 160-75 130-40 ; 10-15
5-17:Silty clay loam, ICL 1A-6 ; 0-10 185-100;80-100;65-95 ;60-80 ;
1 clay loam. ; 30-40 1 10-15
17-601Stony clay loam,;CL, SC ,A-6 115-35 175-85 ;70-80 155-70 140-60 125-35 110-15
1 stony loam. ; 1
I' 1 1 I I
' 1 1 I I w
0-101Stony loam ICL -ML, 1A-4 1 5-20 ;70-80 165-75 ;55-65 140-55 120-30 I 5-10
I
I , ; 1
1 1 1 1 1
; 1 GM-GCi 1 ;
1
10-601Very stony loam ;MLSM-SC ;A-41 1
1 135-70 165-95 160-90 155-75 150-65 1 15-25 1 NP -5
0-111Channery loam1CM,
1 IA -2, A-41 0-5 160-85 150-75 135-65 130-60 1 25-35 1 5-10
GM -GC, 1 ; 1
SM, ML ,
1 1 1 1 1 1 1
11-601Very channery IGM, GM-GCIA-1, A-21 0-5 130-60 120-50 115-40 110-35 1 20-30 11
NP -10
1
I loam, very ; I
1 channery sandy 11 1 1I I 1
1loam. 1 1 1 1 1 1 1 1
1I 1
'' 1 1
ICL -ML, 1A-4
; SM -SC ; 1 0 175-95 175-90 160-85 145-65 1 20-30 I 5-10
I 1 I i
I
I 0-25;Loam
,
;25-501Very channery IGC, GM-GCIA-6,
I clay loam, very 1 A_2 1 , I 1
;25-30 40-60 140-50 ;35-45 130-40 1 20-35 5-15
1
channery loam. , 1 A_4 , 1
50 ;Unweathered; ; ;
---
bedrock. 1 I I I 1
I0-12;Loam 1
ICL -ML,
---
10 195-100;95-100165-90 150-70 1 20-35 15-10
12-331Sandy clay loam ISC, SM-SCIA-4, A-61 0 195_100175-90 165-85 135-45 ; 20-35 I 5-15
33-431Gravelly sandy 1SC, IA -2 1 0 150-85 150-75 ;35-55 120-35 1 20-30 I 5-15
1 clay loam, 1 SM -SC, 1 1 1 1 1
1 gravelly sandy ; GC, I 1 1 ' 1 1 1 1
I loam.1
1 1 1 1 1
I GM -GC I 1 1 1 1 I
43-601Very gravelly ;GM, IA -2, A-11 0 130-50 130-50 120-35 ;10-25 1 15-30 ; NP -15
1 sandy loam, ; GM -GC, 1 1 ;
very gravelly ; GC ;
1 ; 1 1
sandy clay 1
; loam. 1 1 1 1 I I 1
' 1 1 ; �
1 1
1 0-5 1Loam ICL -ML ;A-4 II0 190-100190-100;65-95 150-75 1 20-30 1 5-10
5-181Loam ICL, 1A-4, A-61 0 175_100175-95 170-95 ;35-75 1 20-35 1 5-15
1II
I CL -ML 1 1
1 , 1 1 1 ; , 1 ; , i
1 1 I SM -SC, 1 1 1 1
' 1 ; SC ' ' 1 1 1 1 1 I
118-291Very channery ;GM -GC, GM1A-1, A-21 5-30 125-40 120-30 115-301
loam, very ; 1 3 110-20 1 15-25 1 NP -10
; 1 channery sandy ; 1 1 1 1 1 1 1 ;
1 , 1 , , 1 1 1 , ,
I loam. 1 1 , 1 1 1 1
1 1 I
29 ;Unweathered 1 1 '1
---
1 bedrock. 11 ' 1 1 1--- 1---
1 1 1 ; ; 1 ;
I 1 1 1
, 1 I
See footnote at end of table.
140
• •
TABLE 13. --ENGINEERING INDEX PROPERTIES --Continued
SOIL SURVEY
Classification Frag- Percentage passing
Soil name and Depth USDA texture ; ; ;ments ; 1 sieve number-- ;Liquid ; Plas-
map symbol ; ; ; Unified ; AASHTO ; > '
3 i i i limit ; t1Cit`
1;inches; 4 I 10 ; 40 ; 200 ; 1 index
In ' i 1 i Pct 14 1 i i 1 Pct ;
1 1 1 I 1 1 1 1 1
65*. i i I 1 1 1 1 1 1 1
1
Torrifluvents I I 1 1 1 1 1 , ,
I
1 I I 1 I I I I 1 1 1
66*: 1 1 ' ' 1 1 1 1 1 1
Torriorthents. 1 1
1 ' 1 1 1
1 1 1 1 1
1 1 I1
1 1 1 1 1 1 1 1
Camborthids.
I 1 1 1 1 1 I 1 I 1
' 'i 11 I 1
i1 1 1
Rock outcrop. I I I 1 ' 1 1 1
i 1 i 1 1 1
I I I I I 1 I I
67*: ;
Torriorthents. ; 1 I 1
1 1 I 1 ,
1 I I 1 1 I
Rock outcrop. I I , I 1
I 1 I 1 1 1 I
1 1 1 1 1 11 1
68, 69, 70 10-11ISilt loam ICL, CL-MLIA-4, A-61 0 1100 1100 190-100170-90 1 25-40 1 5-15
Vale 111-261Silty clay loam,;CL IA -4
0 ; 100 1100 190-100170-95 i 30-45 ; 10-25
I clay loam, silt; I A-6, , ,
1 i loam. 1 1 A-7 1 i I i 1 i
126-60ILoam, silty clayICL, CL-MLIA-4, A-6; 0 1 100 1 100 185-100160-95 125-40 I 5-15
1 I loam, silt 1 I I 1 I 1 1
i i loam. I I 1 1 ; ; 1
' 1 ' 1 1 I 1 I 1 1
1 I 1 1 1 9 9 1
Villa Grove ' '1 1
•
1
0-4 ;Loam ICL lA-6 I 0 1100 195-100170-90 150-60 1 25-35 110-15
1 4-15lClay loam, sandylCL, SC IA -6 1 0 1100 195-100170-95 145-70 130-40 1 15-25
1 1 clay loam. 1 I 1 1 1 1 , , ,
1 1 1 1 ; 1
115-6OISandy loam, loamlSM-SC, IA -2, A-41 0 1 100 195-100160-70 1 3-55 1 20-30 5-10
CL -ML 1 ; i 1 1 1 I 1
1 1 1 1 1 11 1 1
1Zoltay I 0-191Loam ICL IA -6 1 0-5 180-95 180-95 165-75 150-65 1 25-35 1 10-15
119-601Gravelly clay, ICL, GC, IA -6, A-71 5-30 165-85 160-80 150-75 145-70 1 30-50 1 15-30
1 I cobbly clay, I SC 1 ; 1 1 1 1 ' 1
1 cobbly clay 1 I 1 1 I 1
1 1 loam. 1 I 1 1; 1 1 1 ,
1i i
i 11 1 i 1 1 i i 1
72 1 0-171Sandy loam ISM, SM-SCIA-2, A-41 0 195-100195-100170-85 130-45 I <25 i NP -5
Wann 117-60ISandy loam, finelSM, SM-SCIA-2, A-41 0 195-100195-100170-80 130-45 I 0-26 1 NP -5
1 1 sandy loam, 1 1 1 1 1 1 1 1
i 1 coarse sandy 1 I 1 1 I 1 1 1 I
1 I
1 1 loam. 1 1 1 1 , 1 ; 1 1
1 1 I 1 I I I I 1 I I
* See description of the map unit for composition and behavior characteristics of the map unit.
(7 n (1 (7
o * o .
O - O 3 r
S a m r
c 1 0.
O ■ 0 0 3
p •• - 7
3 3) v,
n
0)
le
,O rCO
--1 V1 W
CO * a a *a-0) N N ••fAa m 0O O`r r ID0)0) /')' rr7 r• OOa 3 3
a
0
0
O
0
0
-s
O
3
CO
1
0)
n n n n to Cl b Co CO CO b b Co b b
z z z z z z z z z z z z z z z z z
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 7 3 0 3 7 7 3 O 0 0 0 0 0 0 0
m (3 (3 (D CD m (D m (D m (D (D m m fl) m m
3 0 m
0) r•
'V r
4
K fL
33
0 m
O
N N
3
0.
-
3 X
1 I•- •<
0 0 a
C OA 1
r 0
0
1
m
.0
C
fD
3
0
uoTaeJnU ;
1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 K
0.
4
V V V V V V V v V V V V V V V V V b
0• P rn 0 0` O+ rn rn U 0' O• 0' co 0' 0` 0' O+ m
c* •O
O 0 O O O O O O O O O O O O O O 0 [*
3•
N N
V V v v V O O V v V V V V V 0 0 V
0, 0' 0, 0• 0' 1 I 0' 0, 0` Cc. 0` 0, 0, 1 1 Os
0 0 0 0 0 t N O 0 0 0 0 0 O N t 0
0 0 0 0
73 73 2 73
r• r• . r•
-ct1 'O
1 '0 '0 a O
1 0) 0) d
1 0" U Q
I-. r r
CD m m
3 3 3 r- 3 3 r- t— r 3 3 3 r- r- r t—
o O O 0 0 O 0 0 0 0 0 0 0 0 0
a a E a a L E E a a 0. E E L E
(0 co as m m (0 m
1 7 7 1 1 1 1
0) 0) N ID 0) 0) 0)
f* I* 1Y re I* f* 1*
m m m m m m m
I 1 1 1 1 1 1
1 1 1 1 1 1 1
1 1 1
0 0
C1. a
CD (D
7 7
d 0)
c*
CD (D
1
1
2 2 2 3 2 2 2 2 2 2 3 3 2 2 3 2
r. r• 0 rr• r• r r. r 0 0 -. r• 0 r•
CA OG Oo w 0. o0 00 Oa 00 w oc a 0. w oa 0. O0
7 3 S 2 m S S 3" 3 2 7" m m 0 0' 0 2
1 1 1 1 7 1 1 1 1 1 I 7 7 1 1 1
1 1 I 1 0) 1 1 I I 1 1 0) as I 1 0)
1 1 I 1 0- 1 1 1 I I 1 1* 0- I 1 0.
1 I 1 1 m 1 1 I I 1 1 (0 m 1 1 m
I 1 1 1 1 I 1 1 1 1 1 1 1
r- r- r r- r r r r r r r r r 3 r r r
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 E E E L L L L L L E L E a L E L
co
1
as
C*
m
O
(*
S
4
b
m
.O
3 c*
ssaup.leH
0) 0
O M R
1* 1 m
r 0
0 4 t*
3
O. i•-••
O)
N
a
3
4
c* O
m
m c*
1, CD
a
1
910.1311001
O
O
3
(D
1
0
O
r
4
0
not oJaoo
-$ 0.
S m
CO M
r
4
3 1*
0'
00
O O
4
n
O
3
m
m :
3 M
4
0
r0
m a
4 I-•
4
w
Cl. 0
s
N CO
7 3
-•
v :
L
B m
m 1*
07 m
3 1
G
3 d
0 Q
1 N
m m
3
1*
µ
CO 0
3
3•
m
Qn
4 r
m 0
3 4
0 4
m 0)
1
O '<
M
(D
N x i
3 17
r
m N
3 h^
1* 3 [
1
K t*
m
r1
3 3
0. 4
r
0 4
0)
0
(D 3'
CI' CA
4
3)
0)
0) a
C*,
01
f* 1
Sm
m -
M
m
0) 0'
c* ,
C r•
7 m
CD
r...-3
4
3 0)
0 'O
1* a
0)
3) ,
m
0 3
O N
••
0
m
1 CO
. 3
�-
o' payo.iad.
9bl oaddoloa 'diad 3141
(D
ID
0
0
0
r
3
(D
0.
0
r
Q
m
*S11.1@q1JOTJJOi
osuoJapII
01
v r
0-
r
r
N 01 01
01
rn
rr4
r r a
3.o r-
0 0 r a7
'1 3 3
< 0 '0
3 7 S
r
1
7c O
3
D Cr)
7 3 0
7 0) r
e •0 r
CA
� d
3 3
0(o
O
r 0)
0.
s
1-,<
DO w CO CO w w w to co w w w w c-) w w c) 0 0 0.
0w -s
I-. 0
0 1
Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 3 3 7 3 3 3 3 3 3 3 3 3 3 3 7
0 0 0 ID (0 (D (D (D (D (D (D (D (D (D (D fD (D
uolgemd j
------------------------------------------------------------------------------------------------------------- -----
3
1 1 1 1 1 1 1 I 1 1 1 1 1 1 1 I 1 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 K
S
3
V V V V V v V V V V V V V V V V V C7
0' rn rn as 01 rn rn rn o) rn o) rn rn 01 rn 01 01 I (D
0
O 0 0 0 0 0 O O O O O O O O O O O r
3•
3
O
3
r
S
N
t L N N 2 13
0 v V v 0 0 0 v O v V v v v v V v 0
1 01 01 01 1 1 1 0, 1 01 01 U 01 01 01 01 01I '0
F
01 0 0 0 01 .0 0 01 0 0 0 0 0 0 0 0 0 fl*
O 0 0 0 0 S
z - z 1 x
r• r r1-.. N
'0 '0 '0 '0 '1
'0 1 1 '0 '0 '0 a
0) 1 1 01 ID DI
Q 1 1 O' 0' CT
r r r r
(D (D (D ID
ssaupJeH
0
0
3
3 r r r 3 3 x r 3 3 3 3 3 r 3 r 3
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 '9
0. L L E 0. a a L a a a 0. 0. E 0. E 0. 0) 0
(D (D ID (D (D (D (D (D (D (D (D 0 • , r
-1 7 7 7 7 '1 Z Z -1 Z -1 r 'S N
Co 01 0 0) a) 0) 0) 0) Cu 0) 0) r 0 7
c* r c* r r r r ct r r r O G r
(D (D ID ID (D ID (D (D ID ID (D 3 r r
1 1 1 1 1 1 1 1 1 1 1 01
1 1 1 1 1 1 1 1 1 1 1 r
1 1 1 1 1 1 1 1 1 1 1
------------------------------------------------------------------------------------------------------- -- --- -------
3 x x x 3 3 3 3 3 x x 3 3 x S x x a
O -• r• H. 0 0 0 0 0 r• r• 0 0 r I H. r 3
0. 00 00 00 a a 0. 0. 0. 00 00 0. a 00 00 00 00 u 0
ID S S s (D ID (D (D ID 3 a ID (D S S S ' r O
-1 7 7 't Z -1 1 1 '7 -7 1 1 1 1 (0 0)
as 1 1 1 0) Cu 0) 0) 0) 1 1 0) 0) 1 1 1 i (D r
r 1 1 1 r r r r r 1 1 r r 1 1 1 1 r (D
ID 1 1 1 (D (D (D ID (D 1 1 ID ID 1 1 1 1 a
1 1 1 1 1 1 1 1 1
-------------------------------------------------------------------------------------------------------------
r r 3 3 r- r r r- c- r r r r 3 t— r X
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
E E a 0. E E E E L E E E E a E E 0.
(D ID • (D ID
-1 7 -1 z
0) 0) 0) 01
r r r r
(D (0 ID ID
agaaouo0
0
0
0
-s
0
DD
0
3
�IOS--'SL 319Y1
0
WATER FEATURES --Continued
Gv l oaddoloo 'b3ad 31d1
*
V1
co
(D
a
0
0
1
r•
•0
r•
0
7
0
ro
3•
0
8
0
C
r•
cr
0
0
0
0
3
10
0
N
r•
0
3
01
3
n.
0
(D
S
O
-1
0
3•
0)
1
0
3D
(D
1
1-�
1-••
0
0
..3
K
S
0
3
m
0
C
7
r•
c*
A3AHf1S 1109
HI HI 0'
Y
N Iv < — < CO •-i -4
0) 0 r• * D3 O 0 *
3 r• r• .. r•
3 cc
0)
1--• (D ON 7C -1
Iv '.0 r•
- O 0
0 C -1
-I H1 c'r 0-
O 0 () 7'
< 1 (D
(D O 7
3'
CO (5 CO CO
w
•do.logno >ooa
•sptqq.loqweD
•
fT cc, 0'
H O. H in H.0 (A w
O * 0 * v 3-.
1 •• 1 . 7 r
1 •1 7 0)
r• r• Df N
O •y
-1 1--•
c* 0
7" <
0 co
3 3
n
N
3 0
Cu r -
1J r
0
`< 0)
3 2
vo
0
m
3
a
m 0 0 0.
C00
r• 0
O 1
'1
1
(D
.0
0
0
3
0
•<
o z z z z 0
0 0 0 0 0 0
3 3
(D (D
O 3
O1 as
0
r
0
3
03
r
3
0
Ieuotseo
CO 03
' 1 a
r•
H. C
0 1 0 1
1 M O1
I 1 1 cc
1 1 r•
1 1 0
1 1 7
________________________
1 •O 0
1 1 3
1 I cr
0 (A
C O N
v v v v v 03
o O' OU O, U O' '*1 fD
1 3 'O
W 0 0 0 O 0 cc
0 7•
'*1
0
O
r
3
m
3 -1
01 c*
1-. S
N
N
v v v v 0 1 0
fT OT Os O' 1H 1-17
0 0 0 0 .!= 1 7 0'
O 3'
r•
✓
0)
ry
IT
r
fD
3: 3 0 0
r • O 0 O O • 0 •V
w 0. 0. a E 0. m o
S co O as (D 0 Mr
1 1 1 -i c' 1 fD
Cu 0) 0) 0) r• 0 3
c* c* K c* 0 N K
to 0 o fD 3 c, r-
1 1 I 3 0)
1 1 1 1 1-•
I 1 1 I
---- --=--
--------o ------ ------------ ------------------------ -- - -------
_ 3 2 2 C
r• H. r• r. r 7
07 W 00 a OG 00 CA 0
7 3 3• 0 7" ? c* 0
1 1 -I 1 1 o 0)
3 1 Cu 1 1 al c1'
1 1 tY 1 I /-• at
1 1 (D 1 I a
---'--- '-- 1 I 1
--------------------------------------------------------
r r r r r r
0 0 0 0 0 0
E E E L E E
ssaupJeH
fD
1
0
0
agauouo3j
r
w
0
0
1
1
0
r
0
7
TABLE 15. --SOIL AND WATER FEATURES --Continued
8171.
•
07, JO /I ON QHS
SHEET NUMBER 16
RIFLE AREA, COLORADO
(NORTH MAMM PEAK QUADRANGLE)
'. S. DEPARTMENT OF AGRICULTURE
SOIL CONSERVATION SERVICE
NOV-27-00 02:11 PM COLORADO WEST REALTY
November 27, 2000
Garfield County Building and Zoning
Glenwood Springs, Co 81601
Reference: Juniper Hills
Att: Kit Lyons
970 625 0552
Linda Craig hereby gives her consent and permission as
owner of Lots B and C, to Mike Joyce at Developmental
Concepts, Inc. to correspond, and submit paper work on
half.
inda Craig • Date
011
r
P_O1
MES SAGE C O NF I RMA T= O N
DATE : NOV-20-2000 MON 12:23 PM
NAME : BLDGPLANGARCO
TEL. : 9703845004
PHONE : 9P9633814
PAGES 0/1
START TIME 11-20 12:22PM
ELAPSED TIME 00'00"
MODE ECM
RESULTS NO ANSWER
first page of recent document failed to send fully...
Sa
co
z
1 0
R^ �
urk
�g
`asnoy rood LT! MUG
3
5
{
1
A..
cl
m
z �
a
0
JUNIPER HILL COMMENTS
Brief Summary
Project is 6 Tots on 71.19 acres, located approximately 5 to 6 miles south of Rifle. One
residential unit per lot, with accessory buildings only. Steep topography but enough
room for building envelopes (slopes Tess than 30%).
Sketch Map in file
Has 5 -foot contour lines, drainages, proposed ROW for Gage Road, lot lines and
dimensions/acreages, adjacent land owners.
Transportation
1. Existing access (Gage Road) is only 15 feet wide; however, ROW easement
(copy in file) is for 60 -foot ROW.
2. Driveway permit application also in file.
3. Main access road is CR 319.
4. Map shows a 9 -foot road through west side of property — will this be improved as
a secondary access road, or is the secondary access elsewhere?
Drainage
1. Two small "intermittent" drainages on property, shown on Plat Map.
Water
1. To be provided by 2 wells - not drilled yet, no permits in file. Name of water
engineer is listed.
2. Storage tank to be located on "high point" on Lot 3 — no size listed.
3. Estimated use per day is 1980 gallons, based on 3.3 persons per household x
100 gal/day.
Sewage
1. Individual sewage disposal systems — need permits, percolation tests.
Soils, etc.
1. Soils report in file