HomeMy WebLinkAbout1.05 SCS Soils mappingSECTION 4:70(8) SCS SOILS MAPPING
92 TABLE 4.--ACREAGE AND PROPORTIONATE EXTENT Of THE SOILS Map : Soil name I symbol: \ J1 2 3 4 5 6 7 8 9 1110 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 j
39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 6 58 60 61 62 63 64 65 66 67 68 L I j : I \Almy Variant loam, 25 to 65 percent slopes-----------------: lArle-Ansari-Rock outcrop complex,
12 to 65 percent slopes : \Arvada loam, 1 to 6 percent slopes----------------------___ ! :Arvada loam, 6 to 20 percent slopes------__________________ : lAscalon fine sandy loam, 1 to
6 percent slopes-------------! IAscalon fine sandy loam, 6 to 12 percent slopes------------I lAscalon-Pena complex, 6 to 25 percent slopes------------___ : lAtencio-Azeltine complex,
1 to 3 percent slopes------------: lBadland----------------------------------------------------1 \Begay sandy loam, 1 to 6 percent slopes-------------_______ : IBegay sandy loam, 6 to
12 percent slopes-------------------l \Bucklon-Inchau loams, 25 to 50 percent slopes--------------I :Chilton channery loam, 3 to 6 percent slopes---------------l lChilton channery loam,
6 to 12 percent slopes--------------! lChilton channery loam, 12 to 25 percent slopes-------------l ICimarron loam, 2 to 12 percent slopes------------__________ : ICochetopa loam, 9
to 50 percent slopes-----------__________ : :Cochetopa-Jerry complex, 12 to 25 percent slopes-----------: lCochetopa-Jerry complex, 25 to 50 percent slopes-----------l :Cryaquolls, nearly
level--------------------_______________ : \Cushman-Lazear stony loams, 15 to 65 percent slopes--------l lDateman gravelly loam, 30 to 50 percent slopes-------------! lDetra fine sandy
loam, 12 to 25 percent slopes-------------] Dollard-Rock outcrop, shale, complex, 25 to 65 percent : slopes-------------------------------------------~--------I Etoe loam, 15 to 50 percent
slopes-------------------------: Farlow-Rock outcrop association, steep---------------------: Halaquepts, nearly level---------------------______________ ! Heldt clay loam, 1 to 3 percent
slopes---------------------! Heldt clay loam, 3 to 6 percent slopes---------------------! Heldt clay loam, 6 to 12 percent slopes--------------------! Heldt clay loam, 12 to 25 percent
slopes-------------------! :Holderness Variant clay loam, 6 to 25 percent slopes-------: llldefonso stony loam, 6 to 25 percent slopes---------------: Ildefonso stony loam, 25 to ~5
percent slopes--------------l Ildefonso-Lazear complex, 6 to 65 percent slopes-----------: Irigul channery loam, 9 to 50 percent slopes---------------: Irigul channery loam, 50 to 15
percent slopes--------------! Irigul-Starman channery 10ams,_5 to 50 percent slopes _____ ~1 Jerry 108m, --12 to 50 pe-rcent-slopes--------------... -----... --Kim loam, 3 to 6 percent
slopes ... ----... ----------------------Kim loam, 6 to 12 percent slopes---------------------_____ _ rLamphier loam, 15 to 50 percent slopes-------.. -------~-----lLimon silty clay
loam, 3 to 12 percent slopes-------______ _ :Horval loam, 3 to 12 percent slopes------------------_____ _ :Horvsl-Tridell complex, 6 to 25 percent slopes------------lNihill channery
loam, 1 to 6 percent slopes---------------:Nihill channery loam, 6 to 25 percent slopes---------------r lNorthwater loam, 15 to 65 percent slopes-------------------: :Olney loam, 1 to
3 percent slopes--------------------------: IOlney loam, 3 to 6 percent slopes--------------------------: JOlney loam, 6 to 12 percent slopes-------------------------: tParachute loam,
25 to 65 percent slopes--------------------: Parachute-Rhone loams, 5 to 30 percent slopes--------------l Potts loam, 1 to 3 percent slopes--------------------------! Potts loam, 3 to
6 percent slopes--------------------------! Potts loam 6 to 12 ercent s10 es-------------------------' o s-e on so comp ex, 3 to 1 percent s opes------------Potts-Ildefonso com lex 12
to 25 ercent slo es-----------o s-e on so comp ex, 0 percen s opes-----------Rhone loam, 5 to 30 percent slopes------------------------Rhone loam, 30 to 10 percent slopes-----------------------Rock
outcrop-Torriorthents complex, very steep------------Silas loam, 3 to 12 percent slopes------------------------Tanna silty clay loam, 25 to ~5 percent slopes-------------Torrifluvents,
nearly level----___________________________ _ Torriorthents-Camborthids-Rock outcrop complex, steep-----Torriorthents-Rock outcrop complex, steep-----------------Vale silt loam, 3 to
6 percent slopes----------------------See footnote at end of table. Garfield County 2,000 10,200 10,000 5,300 1,200 2,800 6,300 1,700 9,500 600 900 25,150 900 700 600 1,600 16,600 1,200
1'1,700 300 22,000 9,600 3,800 7,400 6,300 1,600 2,000 900 2,000 3,700 2,160 2,100 2,000 10,150 6,700 1 ~ ,800 2,800 ~, 100 28,700 2,100 1,200 21,800 600 2,100 15,200 2,500 6,300 16,'100
800 2,600 5,300 8 t 700 38,100 1,900 15,800 15 150 1:800 5,300 25,700 2,800 3,700 7,600 51,600 66,850 4,000 Me:S8 County o o o o o o o o o , o ; o I 2,350 I o 1 o 1 o 1 o I 500 1 o ;
o ; o I o I o 1 o ; ; o o o o o o o o o 500 850 o o o o o o o o o o o 200 o o o o o o o o 200 550 100 o o o o o o 200 950 o , SOil SURVEY Total __ Area IExtent 1 !£!:!! I m I 2,000 0'3
10,200 1.6 10,000 1.6 5,300 0.8 1,200 0.2 2,800 0.5 6,300 1.0 1,700 0.3 9,500 1.5 600 0.1 900 0.1 27,500 q.q 900 0.1 700 0.1 600 0.1 1,600 0.3 17,100 2.7 1,200 0.2 1q,700 2.3 300 • 22,000
3.5 9,600 1.5 3,800 0.6 7,400 1.2 6,300 1.0 7,6001.2 2,000 0.3 900 0.1 2,000 0.3 3,700 0.6 2,160 0.3 2,100 0.3 2,500 0.4 11,000 1.7 6,7001.1 14,800 2.4 2,800 0.5 4 ,~700 0.8 28,700 4.6
2,100 0.3 1,200 0.2 21,800 3.5 600 0.1 2,100 0.3 15,200 2."1 2,700 0.4 6,300 1.0 16,100 2.6 800 0.1 2,600 0.4 5,300 0.8 8,700 1.4 38,1006.1 1,900 0.3 16,000 2.5 15 700 2.5 1:800 5,300
25,700 2,800 3,700 7,600 51,800 67,700 4,000 1.2 0.8 4.1 0.5 0.6 1.2 8.3 10.8 0.6
96 So11 name and !IIap symbol ij9 ________________________ 1 Olney I 50------------------------! Olney ,: 51-_______________________ 1 Olney I 52------------------------1 Parachute ,:
53------------------------! Parachute-Rhone : , 5~------------------------1 Potts !, 55------------------------1 Potts I : 56------------------------1 Potts : 57, 58--------------------!
Potts-lldefonso I , 59------------------------1 potts-Ildefonso ,,: 60------------------------: Rhone ,:, 61------------------------1 , "ne ,,I 62----_-_ ... --_--------------... -:
Rock outcrop-t Torriorthents ,: 63------------------------: Silas !, 64------------------------\ Tanna : 65-• Torr1fluvents ,,,, 66 ________________________ 1 Torriorthents-: Camborthids-Rock
outcrop: , , 67------------------------1 Torriorthents-Rock 1 outcrop ,1, 58------------------------: Vale ,,: ;9, 70--------------------: Vale : '1------__________________ 1: Villa
Grove-Zoltay : : 2------------------------: wann TABLE 5.--YIELDS PER ACRE OF CROPS AND PASTURE--Continued Wheat 55 35 25 55 20 18 ~o 25 55 20 Barley ~O 30 25 30 1 l!!! 85 80 60 80 60
55 80 60 N l!!! Oats : : : ---I,, ,, ---I,, ,, ---\ : : ---I --... 1 :,, 40: : I 301 ,I, 251 ---I I,, ---I :,, ---t,, I -... -1 : : ---I I ,:, ---I , ---I , , ,,I 351 :,, 30:,, ,, ---:,,
---t j l!!! : : : : 1001 :,, 901 : , , 80\ ---I ---I:, :,, 1001 : 70\,, : 651 , , 1 , 100: , ,, 70: , , , ,, ---I,, I 70: , , Alfalfa hay ~ .0 3.5 5.0 ~.O 3.5 2.0 5.0 1.5 4.0 3.5 " SOil
SURVey Corn Silage" N I .1 -... l2!! l Ton -~ I -~ ---I 25 I : ---I 20 I I ---I 1S I : ---I I ---I ,I, ---I 25 I I ---I,, : ---I : 1 ---I,, 1 ---I , I ---1 I ---1 ---. • See description
of the map unit for composition and behavior characteristics of the map unit. •
1 l ." ,RIFLE AREA, COLORADO 101 TABLE 6.--RANGELAND PRODUCTIVITY AND CHARACTERISTIC PLANT COMHUNITIES--Continued SoU name and map symbol Range site name Total proouctlon I IKlnd : ICompo-1
s1 ticn I Characteristic vegetation of year: Dry 45': Horval------------,D,, eep I I ,, : I Loam---------------------1Favorable tHormal ,,l U nfavorable I 46, 47 _____________ IRolllng
I Loam------------------IFavorable Nihill ,,t ,,I , , I INormal : Unfavorable ,,,,I I 49, 50, Olney 51---------!Rolling Loam------------------IFavorable , I Normal I I,, ,, 52 _________________
I'B rushy Parachute , 53*: .: ,,I, Unfavorable , I I Loam-------------------1Favorable : Normal : Unfavorable I Parachute---------IMountain I Loam-----------______ IFavorable INormal
I,, unfavorable ,, I ,,I , , , , Rhone _____________ !I Mountain Loam---------________ Favorable Normal .Unfavorable I 54, 55, Potts ,, , 56 _________ :Rolling ,, , I I 5P7o·,t ts5 _S_-_,
_5_9__-:_ _____ 1IR olling ,,I I ,,I Loam------------______ IFavorable INormal ,,I Unfavorable ,, Loam------------------1Favorable lNormal IUnfavorable See footnote at end of table.
: weight ! Itb/acrel I Pet 1,SOO 1 ,500 700 1,000 800 500 1,000 800 500 3,000 2,000 1,500 1,800 1,500 1,200 1 , SOD 1,500 , ,200 1,000 800 500 1, 000 800 500 ,, : IWestern wheatgrass------------l
20 INeedleandthread---------------l 15 IBig sagebrush-----------------l 10 II UBtlauhe busnecrvh icwehbeerartyg-r_a_s_s_-_-_-_--_-_-_-_-_-l ! 105 ,, ,, IWestern wheatgrass------------l
20 IBluebunch wheatgrass----------l 15 IBig sagebrush--------------___ l 15 I Needleandthread--..... ------_____ l 10 IllIonwd iarna brbiictbergursahs-s_-_-_-_-_-_-_-_-_.. _-_-_--_-_l
! 105 ,, ,, :Western wheatgrass------------l 20 IBluebunch wheatgrass----------: 15 IBig sagebrush-----------------! 15 INeedleandthread---------------1 10 IIndian ricegrass--------------l
10 1,, R abbitbrush-------------------J,, 5 IUtah serviceberry-------------! 15 lGambel oak--------------------! 15 \Elk sedge---------------------I 10 lMountain brome----------------l
10 IColumbla needlegrass----------! 5 lletterman needlegrass---------I 5 lIdaho fescue------------------l 5 lMountaln snowberry------------l 5 ,,1 8ig sagebrush-----------------l,, 5
,, ,, lletterman needlegrass---------l 15 lColumbia needlegrass----------I 10 : Elk -se-dge---';'---~-~---';"';'---------: 10 lBlg sagebrush-----------------l 10 lIdaho fescue------------------I
5 IBluebunch wheatgrass----------5 181g bluegrass-----------------5 lUtah serviceberry-------------5 :Mountain snowberry------------5 !Douglas rabbitbrush-----------5 , lLetterman needlegrass--------
-15 lColumbla needlegrass----------, 10 IBig sagebrush-----------------10 1 Elk sedge---------------------10 lBluebunch wheatgrass----------5 11daho fescue------------------5 JBig bluegrass----------
-------5 IUtah serviceberry-------------5 :Mounta1n snowberry------------5 lDouglas rabbitbrush-----------5 I :Western wheatgrass------------25 INeedleandthread---------------15 fBluebunch
wheatgrass----------15 lB1g sagebrush-----------------10 I Indian ricegrass--------_ .. ----I 10 fLow rabbltbrush---------------5 ,l Squirreltail------------------5 Western wheatgrass-----------Needl
eandthread--------------Bluebunch wheatgras s ---------Big sagebrush----------------Indian ricegrass-------------Low rabbitbrush--------------Squirreltail------------------:Z5 15 10
10 10 5 5
106 SOIL SURVEY 5011 name and map symbol i I TABLE 7.--BUILDING SITE DEVELOPMENT--Continued Shallow excavations Dwellings without basements Dwellings with basements Small commercial
buildings ~3~· ______________ jModerate: Limon : too clayey. Severe: shrink-swell. Severe: shrink-swell. I :Severe: ,, ,, ________________ ISlight ___________ rModerate: Horval: I shrink-swell.
: ,,I Moderate: shrink-swell. i shrink-swell. I :Moderate: : slope, shrink-swell. I I 45-: : I : I Horval ___________ 1Hoderate: IModerate: lModerate: :Severe: I slope. : shrink-swell,
: shrink-swell, : slope. ! ! slope. ! slope. ! r r r r : : : : Tridell----------: Severe: : Severe: : Severe: I Severe: : slope I : slope, : slope I : slope, I large stones. ,J large
stones. : large stones. I large stones. : r : : ,,i Local roads and streets lSevere: I low strength, : shrink-swell. I IModerate: : low strength, : shrink-swell, I frost action. I I
I Moderate: low strength, shrink .. swell, slope. Severe: slope, large stones. 46 ________________ ISevere: :Slight---________ !Slight ___________ ISlight ___________ .. Slight. Nihill
: cutbanks cave. : : : : I : : : : .Q7----.. -----.. ----... : Severe: : Severe: : Severe: : Severe: : Severe: Nihill I slope, : slope. : slope. : slope. I slope. I cutbanks cave. i
I I I I : I I I ~8-_-_------------ISevere: ISevere: ISevere: ISevere: ISevere: Northwater I slope. I slope. I slope. I slope. I slope. : : I I I ~9----------------:Slight-----------:Slight-----------
ISlight-----------ISlight------------ISlight. Olney : : : I I I I I I I I I I I I 50 ________________ !Slight-----------ISlight---________ lSllght-----------ISlight------------1Slight.
Olney : 1 I I : -, I , , , I I I I I 51----------------: Moder ate: I Mod er a te : : Hoder a te: I Severe: : Hod er ate: Olney : slope. : slope. I slope. : slope. : slope. 52 ________________
II Severe: 'IS evere: :I Severe: II Severe: :l Severe: Parachute I slope, slope. : slope, I slope. : slope. I depth to rock. I depth to rock. : : , I I I I I I I 53-: I : I I Parachute--------1Severe
: Severe: lSevere: ISevere: ISevere: 1 slope, slope. I slope, : slope. I slope. I depth to rock. I depth to rock. I : I I t I I I r I Rhone------------l Moderate: r Moderate: I Moderate:
I Severe: I Moderate: I slope, I slope, I slope, slope. : slope, : depth to rock. I shrink-swell. : depth to rock I : frost action, : : 1 shrink-swell. : shrink-swell. II "r , , II 5~----------------
:Sllght-----------1Slight-----------ISlight-----------ISllght------------1Sllght. Potts I I : 1 I I , , I , I , I I I 55----------------1Slight-----------ISlight------_____ ISlight-----------IModerat
e: ISlight. Potts : : : : slope. 1 : I : : I 56----------------1 Moderate: : Moderate: I Moderate: 1 Severe: : Mod"erate: Potts I slope. ,I :slope. : slope. : slope. I slope. I I I I
57-: f 1 Potts-----~---i--ISlight-----------Slight-----------Slight-----------Moderate: ISlight. : slope. I I : Ildefonso--------ISevere: Severe: Severe: Severe: :Severe: ! large stones.
large stones. large stones. slope, I large stones. I large stones. : : : See footnote at end of table. • •
, . ,.", f • ~'AREA, COLORADO TABLE 7.--BUILDING SITE DEVELOPHEln--Continued -soil name and lIIap :symbol --Shallow excavations s8 ' tts5 _9_'_: _________ 1: Severe: '0 ,,: slope. 11deldf1SU-u_u--,
3bE!i e. : slope, ,,: large stones. 60, 61 ____________ !Severe: IIhone : slope. 62' : Rock outcrop. Torriorthents. , ,, 63 ________________ 1Hoderate: Silas !, floods. 6q ________________
tSevere: Tanna : slope. 65' • Torrifluvents 66': Torriorthents. Camborthids. Rock outcrop. 67': Torrlorthents. Rock outcrop. ,, ,, Dwellings wi thout basements Severe: slope. ,Severe.
: slope, ,: large stones. Severe: slope. Severe: floods. Severe: slope. Dwellings with basements ,Severe: 1,, slope. ,Severe: I slope, I large stones. I 'Severe: slope. ,Severe: ,,:
floods. 'Severe: slope. Small commercial buildings I :Severe: ,,: slope. :Severe: : slope, : large stones. I :Severe: ,, slope. I :Severe: ,,: floods. :Severe: slope. , , I I I I 68----------------iS
light-----------iSlight--_________ :Slight~----------'Moderate: Vale : : : slope. : : : 69 ________________ 1Moderate: [Moderate: 'Moderate: Vale : slope. : slope. slope. ,, 70----------------'Severe
: Vale slope. 71*: Villa Grove------Severe: slope. Zoltay-----------,Severe: ,,I slope. ,, , , 72----------------iSevere: Wann i wetness. , , ,, I Severe: ,I slope. Severe: slope. Severe:
slope, shrink-swell. Severe: floods. Severe: slope. Severe: slope. ,Severe: : slope, ,,1 shrink-swell. ,, :Severe: I floods. : wetness . Severe: slope. Severe: slope. ,Severe: ,,: slope.
, , : Severe: 1 slope, : shrink-swell. ,, iSevere: : floods. ,,: I Local roads and streets : Severe: : slope. , isevere: I slope I ,,: large stones. 'Severe: slope. ,Severe: ,,: floods.
'Severe: slope, low strength. Moderate: low strength. ,Moderate: : slope, ,,: low strength. 1Severe: 1,, slope. , , : Severe: : slope, ,: low strength. , 1Severe: : slope, : low strength,
,,: shrink-swell. :Severe: : floods, : frost action. • See description of the map unit for composition and behavior characteristics of the map unit. 107
112 SOIL :;UllVl:';~ TABLE 8.--SANITARY FACILITIES--Continued 5011 name and map symbol : 5~, 55--------------Moderate: Potts peres slowly. 56------------------Moderate: Potts I slope,
: peres slowly. : 5 i • : I Potts--------------1Moderate: I peres slowly. : Ildefonso----------ISevere: I slope, ! large stones. , 58-: : Potts--------------1Severe: ,,I slope. Ildefonso----------1Se
vere: : slope, i large stones. I 59-: : Potts--------------ISevere: :, slope. Ildefonso----------1Severe: : slope, ,,: large stones. 60 __________________ II Severe: Rhone : depth to
rock, ,,: slope. 61 __________________ ISevere: Rhone : depth to rock, : slope. 62-: Rock out.crop. Torriorthents. ,:, 63 __________________ ISevere: Sllas : floods. ________________
II Severe: Tanna : depth to rock, I peres slowly, I slope. 65' . Torr1fluvents 66 1 : Torriorthents. Camborthlds. Rock outcrop. 67': Torriorthents. Rock outcrop. See footnote at end
of table. : Sewage lagoon areas IModerate: : slope, ,,I seepage. \Severe: : slope. : , ,: ISevere: I slope. I lSevere: I slope, : seepage. ,,I ISevere: I slope. i :Severe: : slope, !,
seepage. ,, ISevere: ,J, slope. lSevere: J slope, ! seepage. , : ISevere: : slope. ,,I ISevere: I slope. ,:, ,,I , , ,, , , :Severe: I floods. I :Severe: : depth to rock, ,,: slope.
,, : Trench san1tar I,, SI1ght-----------,,S light-----------,, ,, ,, ,, ,' ,, Daily COYer for landfill ISllght ___________ IModerate: IFair: : : slope. : slope. ,, '' , ' , :I Slight
___________ 1I SI1ght ___________ 1J Cood. I,, ,I, ,,I :Severe: IModerate: JPoor: large stones. : slope. : large stones. ., : I , , lModerate: : slope. : :Severe: : large stones, : seepage.
,,I ,, ,, I : ISevere: JPoor: 1,, slope. I,, slope. -TSTvere: doOI. : slope, : slope, 1 seepage. I large stones. : : I : : Severe: : Poor: : slope. I slope. : : :Severe: IPoor; J slope,
: slope, ISevere: : slope. I ISevere: : slope, : large stones, I seepage. : i .. epage. llarg •• tone ••• :Severe: : Severe: : Poor: : depth to I rock. : sl"ope. : slope. Severe: 'slope
I depth to .Severe: : floods. Severe: rock. depth to rock, slope. J : : J :Severe: lPoor: I slope. : slope. I :Severe: ,,I floods. 'Severe: slope. I :,, lGood. : : JPoor: slope I th1n
layer, area reclaim. •
J 118 SOIL SURVey TABLE 9.--CONSTRUCTION HATERIALS--Continued : So11 name and map symbol Roadf111 Sand Gravel I Topsoil I I 5~, 55----------------lfair: Potts : low strength. 56 ____________________
!I Fair: Potts ,,: low strength. , I ,, ,, I,, :Unsuited---__________ IUnsuited _____________ IFalr: I : I small stones. :t Unsuited-------______ II Unsuited _____________ II Falr: :
: I slope, r small stones. I 5P7-o: tts----------------IF: a1r: :: Unsuited-____________ I: Unsuited _____________ II Falr: I low strength. : I small stones. J : I : 11defonso------------IPoor:
:Unsuited--___________ IUnsuited------_______ IPoor: : large stones. J I large stones. " , " 5S-: : I 1 : Potts----------------IFalr: :Unsuited-------------IUnsuited-------------IPoor:
: slope, I I I slope. I low strength. I I ~------77~~ _ ------------~I~~~--------------~~~~~' , __ ----------------lldefonso------------I Poor: : Unsui ted----:=::-:---=.:lu;;~1t-e-d-.:::::---~:::-.·
:;:lp;~r: : large stones. I slope, ,,I ,,I large stones. 59-: I I I I Potts----------------1Poor: lUnsuited-------------'Unsuited-------------IPoor: : slope. I I slope. I I I Ildefonso------------1Po
or: IUnsuited-------------Unsuited-------------IPoor: I slope, I I slope, : large stone.s. I I large stones. I I I 60--------------------IFair: IUnsuited-------------Unsuited-------------IPoor:
Rhone : slope, I I slope. I thin layer, I II low strength. I I I I I I 61 ___ ~ ________________ 'Poor: lUnsuited-------------1Unsuited-------------'Poor: Rhone slope. I slope. 62*:
Rock outcrop. Torriorthents. 63-----~--------------Fair: Silas low strength. 6T4a-n-n-a -----------------Psoloorp: e, 65-. Torr1fluvents 66' : Torriorthents. Camborthids. Rock outcrop.
67-: Torriorthents. Rock outcrop. low strength, thin layer. See footnote at end of table. I I :,, ,,I Unsuited-------------'Unsuited-------------Good. Unsuited-------------Unsuited-------------Poor:
slope, I,, I ,,I ,,I ,I . , too clayey.
1 I I ! I RIFLE AREA, COLORADO Soil name and map symbol Pond reservoir TABLE lO.--WATER MANAGEMENT--Contlnued Drainage Irrigation Terraces and diversions 12 Grassed 53-: l l : Parachute--------l0epth
to rock, :Thin layer-----IOepth to rock, ISlope, IDepth to rock, I : Slope, l slope,: : slope. 1 droughty, 1 slope. : rooting der ! seepage.: 1 I rooting depth.l I droughty. , : I I
1 I Rhone------------1Slope, lThin layer-----ISlope, ISlope, lSlope, I depth to rock.: I depth to rock.] rooting depth.: depth to 1 Slope, rock.: rooting de: 1 I : I 1 I easily--:Erodes
easi , 5~, 55-___________ 1Seepage ________ 1Piping ________ 1Slope __ -_______ lSlope, lErodes Potts I : I 1 erodes easily.: 56 ________________ 1: Seepage ________ I: Piping _________
II Slope __________ 11 Slope, :I Slope, :l Slope, Potts : I : 1 erodes easily.: erodes easily.: erodes eas I I : I I 1~---""5"/n.":~-------i~---------i-,-----t------------t----------1-1
--------.,If------Potts ____________ 1Seepage ________ 'Piping _________ ISlope __________ 1Slope, IErodes easily--1Erodes easi ,, Ildefonso--------ISeepage, ,,: slope. I 5P8o-t,t5s
9__·:_ _________ 11 Seepage _______ _ I : 1 erodes easily. 1 1 , I I , I I , r Large stones---1Slope, lSlope, lLarge stones, lS1ope, 1 large stones. 1 large stones, : slope. : large
stan 1 : droughty.: I droughty. : 1 1 : I I : 1 Piping--------_1Slope __________ 1Slope, lSlope, ISlope, 1 : erodes easily.: erodes eaSily.! erodes ea!: : I : , ~---.-.. _--_ .... _----,
5t·on·es-;~-TSlope I ·1 STo'pe I ILarge stones i -·-:-SS'i1-::0"p".",---Ildefonso--------, Seepage, r Large I slope. : : large stones. 1 large stones, : slope. : large stat ,, 1 1 droughty.:
! droughty. I I I IThin : 1 : , 60, 61--__________ IS1ope, layer-----'Slope. 'Slope, 'Slope, Slope, Rhone I depth to rock. ' depth to rock. rooting depth. depth to rock. rooting d· 62·:
Rock outcrop. Torriorthents. 63----------------Slope, Silas seepage, I 6~----------------ISlope. Tanna depth to rock. 65' . Torrifluvents 66-: Torriorthents. Camborthids. Rock outcrop.
67-: Torriorthents. Rock outcrop. • Piping---------,Slope, ISlope, Ifavorable------,favorable. I floods, 1 floods.: : Thin ,, layer-----'Slope, percs depth ,, ,, ,, ,, ISlope, lSlope,
/Slope, slowly, I percs slowly, I depth to rock,: erodes ea to rock.: rooting depth.! percs slowly. : rooting d , I , ,,I , ,, 68 ________________ ,Seepage ________ Piping---------/favorable------Fav
orable------,Erodes easily I I,, E rodes , ea: Vale ,! 69 ________________ 1Slo pe. Vale !, seepage. 70 ________________ ISlope, Vale ,,: seepage. See footnote at end of table. , Piping---------Slope
----------Slope----------IErodes eaSily, : slope. ISlope, , :, erodes e , ' Piping---------Slope __________ lSlope----------1Slope, ,,I I erodes , lSlope, easily.: erodes e , •
128 TABLE 11.--RECREATIONAL DEVELOPMENT--Continued Soil name and map symbol camp areas Picnic areas Playgrounds J ,,i ,, ~~--------------------Slight---------------\Slight-------________
ISevere: Morval LiS-: Morval---------------IModerate: : slope. I Tridell--------------1Severe: I slope. : Li6 ____________________ 1I Moderate: Nihill : small stones. Li7 ____________________
tI Se vere: Nihill ,,\ slope. , , ~8--------------------:Severe: Northwater ,,I slope. 46in;~----------------!M~~:~;~e: ,,, 51 ____________________ 1Moderate: Olney J slope, ,,: dusty.
52 ____________________ 1Severe: Parachute : slope. I \ ! slope. I , : I : Moderate: I Severe: ) slope. i slope. , , :Severe: :Severe: : slope. I slope, : I large stones. : I lModerate:
ISevere: : small stones. : small stones. I :Severe: ,,,,: slope. ISevere: t slope. : Moderate: dusty. Moderate: slope, dusty. Severe: slope. ,, lSevere: I slope, ,,: small stones. :Severe:
! slope. , iModerate: : slope, ,,: dusty. :Severe: : slope. ,,I : Severe: ,,: slope. 53-:: \ Parachute------------iSevere: Severe: :Severe: ! slope. slope. ! slope. , , \_>Rhone----------------:
Moderate: : Moderate: : Severe: ,,: slope. ,:, sJop_e. ,,\ _slope. 5ij, 55----------------iSlight---------------\S11ght-------________ iModerate: Potts ,: ,,: ,,: slope. 56--------------------\Modera
te: :Moderate: :Severe: Potts Ii slope. ! slope. ! slope. SOIL SURVEY i ,,: Paths and trails ,,, , I ISl1ght. ,:,, , ISl1ght. I : \Moderate: I large stones. I I lModerate: I small stones.
I IModerate: : slope, : small stones. I I Severe: : slope. I lModerate: : dusty. ,,I lModerate: !, dusty. ,, ISevere: I slope. ,,I lModerate: ,:, slope. !, Slight. Slight. Slight. ,
, ----1'----------... __ -1-___ _ ':I{ .. : \ : ------: -Potts----------------:Slight---------------iSlight _______________ :Severe: :, !, !, slope. Ildefonso------------ISevere: tSevere:
:Severe: large stones. large stones. : slope, 58*: I Potts----------------ISevere: : slope. !Tififon-so u ·--·:,:; -:...:. ---I Severe: : slope, : large· stones. 59-: : Potts----------------1Severe:
: slope. , Ildefonso------------ISevere: slope, large stones. See footnote at end of table. , ! large stones. ,, ,, , , :Severe: :severe: 1 slope. ! slope. :Severe: : slope, ! large
stones. , , , :Severe: ,! slope. :Severe: slope, large stones. , Severe: slope, lar'ge stones. Severe: slope. ,Severe: s lope I large S~Gnes. ISlight. ,,I :Severe: ,, large stones. lModerate:
I slope. . ................ ~ ..• -.-. \Severe: large stones. Severe: slope. Severe: slope, large stones. •
SOIL SURVEY TABLE 12.--'l.'ILDLIFE HABITAT POTENTIALS--Continued Potentia! for 5011 name and map symbol 'Grsln and seed crops ; wda • Grasseslherba-iHardand : ceous: wood legumeslplantsltrees
40, 41-------------Fair Kim o Fair 42 _________________ rPoor IPoor Lamphier : o o 43-----------------1Poor Poor Limon : 44 _________________ II Fa1r Good Morval I o o 45-: : Horval------------IFair
,Good I Tridell-----------1 Very 1 Very J poor.: poor. o 0 o 0 46-----------------t fai r : Good Nihill : t I : 47-----------------IPoor tfair Nihill : o o o o 48 _________________ JPoor
IPoor Northwater : I 49, 50, 51---------IPoor Olney I o o Irair o o I _-----------------IVery IVery Parachute I poor. I poor. o 0 o 0 53-: I I Parachute---------: Poor : Poor I I : I
Rhone-------------: Poor I Poor 54 t 55, Potts o o o o 56---------IPoor o o o o 57-,58-: : o o tPoor Potts-------------'Poor Poor IldeI6fis6---------Poor rOor 59-: Potts-------------Poor
Poor Ildefonso---------IVery I poor. o o 60-----------------tPoor Rhone : o o o Very poor. Poor 61-------__________ t Very : Very Rhone poor.: poor. o o 62-: Rock outcrop. "lrrlorthents.
See footnote at end of table. o o o : j o o Irair o o iGood o o o o trair o o o o 'Good Good Poor Fair Fair ,Good o o I : Fair o o I lGood o o IGood o o o o 'Good fair fair fair :Fair
o o IGood o o lGood habitat elements J ?otentiai as habltat for--: : J J : lConif-lShrubs:WetlandiShallowl ~ en-: Wood-I I Rangeand land i Wetland I land : erous I 1 plants : water :
.. ld-wild-: wild-wildlplantst i : areas t ife life: life I life j j I 1 I o o , I I , , I , , tFair IPoor IVery tFair t : poor. l : I I I 'Fair :Poor IVery lfair rair fair ,fair o o
lFair o o tfair o o o o Ifair o o I lFair o o o o tfair o Fair fair Fair o o Poor Poor Poor I Very : poor. o :Very : poor. o o IVery ! poor. o IVery i poor. o o :Poor o o 'Very poor.
Very poor. Very poor. : poor. o o : Very t poor. Poor Poor Very poor. ,Very I poor. o o IVery 1 poor. o o : Very : poor. o o IVery I poor. o o IVery : poor. o o o 'Very poor. Very poor.
o o IPoor o o :Good o o lGood Poor fair fair ,Fair o o o o 'fair Poor fair r ai r trair Very poor. Very poor. Poor o o trair o o o Fan Fair Fair tFair o o IFair IVery : poor. o I 0 ery
! poor. o o o :Very : poor. o o IVery I poor. o o IVery ! poor. IVery : poor. o o Very poor. Very poor. Very poor. Very poor. Very poor. Very poor. o o o Poor rOor POQr Poor tfair o
o tPoar j j o 0 o 0 o 0 IVery trair. : poor. 1 I : IVery trair. 1 poor. I o I IVery tfair. 1 poor. I : : I?oor ifair. o o o o IPoor I IVery : poor. o : Very : poor. I IVery ! poor. o
IVery : poor. o o IVery : poor. I IVery ! poor. o I : Very : poor. o o : Very : poor. o IVery : poor. I o o IVery ! poor. o I 0 hi y 1 poor. o o o o : Very ! poor. o IVery ~ poor. o
IVery ! poor. o IVery t poor. o o o o I o o trair. I tfair. o o trair. o o o o I rair. o o o o trair. o o trair. o o o o 1rair. o o I o o trair. o o I lGood. o o trair. o o lFair. ,r
air • o o o o lFair. o o o o :rair. o o o o 1Good. o o IGood. • • •
RIFLE AREA, COLORADO .... -'I TABLE 13.--ENGINEERING INDEX PROPERTIES--Continued Classification iFrag-: Percentage passing i So11 name and map symbol , Depth l USDA texture Unified AASHTO
lments 1 ______ ~s~l~·e~v~e~n~u~m~b~e~r~-;-------ILlquid I > 3 : :: I 11mi t linches' 11 10 L10: 200 : In I ~ I 1 Pet : I' 53': Parachute---------, , 0-5 5-18 , , Loam------------ICL-ML
Loam------------ICL, : CL-ML, [ SM-SC, ,,,, A-61 o o I I I 1 : 18-29 Very channery loam, very channery sandy loam. I SC IGM-GC, : GH,A-1, A-2' 5-30 : ,, ,,: 29 Unweathered bedrock. ,
, 1 ,, ,, Rhone-------------l 0-8 Loam------------1CL, CL-MLIA-Ll, 8-28 I Sandy clay loam,: CL, : A-4, : loam. : CL-ML, : : : SM-SC, : :: : sc : 128-521Channery sandy lCM-GC lA-2 I :
clay loam, very: : channery sandy : : clay loam. 52 jUnweathered : : bedrock. :: I 5~, 55. 56---------: 0-4 lLoam------------1ML Potts : 4-28: Clay loam-------: CL ,,l z B-60I,, Loam------------1ML
57.,58 1 ,59 1 : :: : Potts-------------! 0-4 ILoam------------1ML : LI-2S1Clay loam-------ICL . 128-601Loam------------1ML ~ ) i! ' -' Ildefonso---------l 0-8 :Stony loam------1SM,
GM : 8-60:Very stony loam, ISM, GM : : very gravelly 1 I I sandy loam. I I: I ,, , , 1 IA-ll IA-6 IA-lI ,, , A-ll A-6 A-~ A-l, A-1 , 60, 61-------------' 0-8 lLoam------------1CL, Rhone
8-281Sandy clay loam, JCL, CL-ML, A-lI, :A-~, I loam. I CL-ML, 62': Rock outcrop. Torriorthents. 63-----------------Silas , 6~-----------------' Tanna I : SM-SC, : SC 28-52lChannery
sandy IGM-GC r clay loam, very! I channery sandy : clay loam. 52 1 Unweathered bedrock. , , , 0-601Loam------------ML ,, , 0-9 [Silty clay loam lCL 9-2~:Clay loam, clay,ICL : silty clay
loami 2~-30IVery channery lGM-GC, I loam, channery : CL-ML 1 clay loam, : loam. 30 :Unweathered bedrock. See footnote at end of table. ,,, , , lA-2 A-O A-6, A-6, A-2 A-6 0 A-6 0-5 0-10
0 0 0 0 0 0 A-2 5-25 A-2 20"70 A-6 0 A-6 0-5 0-10 0-10 A-7 0-5 A-7 0-5 0-10 ,, ,, ,, 90-100:90-100165-95 '50-75 75-100'75-95 1,, 70-95 35-75 25-~0 20-30 15-30 10-20 , 90-100 80-95 70-90
'50-70 85-100,,,7 5-95 60-90 35-65 ,, ,, ,, ~5-60 lilO-55 ,,1 30-50 15-30 ,, ,, ,, 75-100175-100165-90 50-70 75-100175-100:70-100 55-80 75-1001,, 7 5-1001,, 6 5-90 50-70 ,, ,, 75-100175-100:65-90
50-70 75-100175-100170-100 55-80 75-1001, 75-100:,6 5-90 50-70 50-75 ~0-60 30-~5 20-35 00-75 35-60 25-50 10-30 90-100 80-95 70-90 50-70 85-100 75-95 60-90 35-65 05-60 40-55 30-50 15-30
,90-100 80-100 75-95 55-80 90-100 90-100 90-100 85-95 90-100 90-100 80-95 75-90 00-100 30-95 25-80 20-70 20-30 20-35 15-25 20-35 20-~0 20-30 25-35 25-35 25-35 25-35 25-35 25-35 20-25
20-25 20-35 20-00 20-30 20-25 35-05 35-05 25-30 139 Plasticity index 5-10 5-15 NP-l0 5-15 5-20 5-10 NP-5 10-15 NP-5 NP-5 10-15 NP-5 NP-5 NP-5 5-15 5-20 5-10 NP-5 15-20 15-25 5-10
144 SOIL SURVEY TABLE l~.·-PHYSICAL AND CHEMICAL PROPERTIES OF SOILS.-Contlnued Soil name and map symbol In 53': : Rhone-----------: 0-8 : : 8-28: :28-52: ,,: 52 ,,: 5L1 I 55, 56-------:
O-LI : Potts : 4-28: ,,1 28-60: 57', 5S', 59': : Potts-----------: O-~ : : 4 .. 28: : 28-60: , , lluelor.so-------, 0-0 , ,,: 8-60:,, 60, 61-----------: 0-8 : Rhone : 8-28: 62' : Rock
outcrop. Torrlorthents. 28-52: 52 ,, 63---------------. 0-60: Silas :: : : 6L1---------------[ 0-9 : Tanna : 9-24: 65". Torrifluvents 66': Torriorthents. Camborthids. Rock outcrop. 61':
Torriorthents. Rock outcrop. [211-30' .: 30 ,, 68, 69, 70-------J 0-11: Vale 11-26: 26-60: 71·: : Villa Grove-----o-~ : !I-15 : , 15-601,, Z~ltay----------: 0-19: ,,: 19-60:,, 72.--••••
·-------: 0.17: Wann ,,: 17-60:,, Pct 20-27 20-30 20-30 15-25 20-35 15-25 15-25 20-35 15-25 15-25 15-25 20-27 20-30 20-30 15-27 27-35 35-~5 15-30 20-27 25-35 15-30 15-27 20-35 15-25
20-27 35-~5 10-18 10-19 Permeability in/hr 0.6-2.0 0.6-2.0 0.6-2.0 0.6-2.0 0.6-2.0 0.6-2.0 0.6-2.0 0.6-2.0 0.6-2.0 .<::.0-6.0 2.0-6.0 0.6-2.0 0.6-2.0 0.6-2.0 0.6-2.0 0.06-0.2 0.06-0.2
0.06-0.2 0.6-2.0 0.6-2.0 0.6-2.0 0.2-0.6 2.0-6.0 0.2-2.0 0.6-2.0 0.06-0.2 2.0-6.0 2.0-6.0 , \Available' Soil :Sallnity Shrink-swell factors : water reaction: I potential :capacitv :
: K T : lnhn E.!:i ,mmhos/cml , , :0.19-0.21 6.6-7.8 :0.15-0.17 6.6-7.8 :0.08-0.10,6.6-7.8 ,, ,, \0.16-0.18\6.6-7.8 10.19-0.21:6.6-8.~ 10.16-0.18:7.9-9.0 ,, ,, :0.16-0.18:6.6-7.8 :0.19-0.21
:6.6-8.~ :,, 0.16-0.18:,, 7.9-9.0 rO.08-0. lOr i .<;-8.4 !0.06-0.081,, 7 .9-8.~ 0.19-0.21 :6.6-7.8 0.15-0.1716.6-7.8 0.08-0.10:6.6-7.8 , ,, :0.1~-O.16:6.6-7.8 ,, ,, :O.1~-0.2016.6-7.8
:0.12-0.1817 .~-9.0 :O.07-0.121,, 7.ij-9.0 , '0.19-0.226.1-7.8 0.17-0.22 6.6-8.~ 0.13-0.20:7.~-9.0 , : 0.16-0.1S:7.ij-8.ij O.10-0.1ijI7.ij-8.4 0.1ij-0.1617.9-8.4 : ,0.17-0.19:6.6-7.8
,,, 0 .13-0.15:,, 6 .6-7.8 :0.16-0.18:6.6-8.4 :0.15-0.17:,, 7.9-8.4 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <~ <2 <2 <2 <2 <2 '" <~ <2 <2 <2 2-8 <8 <8 <2 <2 <2 <2 ,, , lLow-----------l0.Z4 \Moderate------IO.Z4
lLow-----------l0.15 1--------------1----. ,, "" 3 \Low-----------10.371 5 lModerate------10.431 lLow-----------10.5S1 ,, "" I I I ILow-----------10.371 5 lModerate------10.ij31 rLow
___________ \O.55: I I 1.000-----------10.151 3 Low-----------IO.15 1 , Low--_________ 10.24 3 Moderate---·--IO.24 Low-----------10.15 --------------1----: : Low---·-------IO.24 5 :,,
Moderate------IO.37 2 Moderate------IO.~3 Moderate------l0.24 -------~------I----,, ,, ,, Moderate------IO.32: 5 Moderate------I 0.431 .Low-----------1,,0 .431,, ,, "" lModerate------10.241
5 lLow-----------10.201 lModerate------10.321 ,, "" lModerate------10.281 5 lHigh----------10.2 4 1 ,, "" lLow-----------l0.20: 5 lLow-----------l,,0 .2. 0:,, • See description of the
map unit for compOSition and behavior characteristics of the map unit . matter Pet 3-6 1-2 1-2 0.5-i 3-6 3-5 2-~ 2-~ 2-~ 3-6 •
TABLE 15.--S0IL AND WATER fEATURES--Continued J I Flooding High water table Bedrock I RIsk of ciirroSiOri"""" 5011 nalDe and I Hydro-I I I I I Potential I I map' symbol I logicl Frequency
I Duration IHonths Depth I Honths Depth I Hardness frost IUncoated :Concrete IgrouD I I I I I action I steel : I 51 t' • Ft In Ii I I I • I I I I I I 39 .... --------------I C IN one-------I-I
'>60 >60 IModerate---IIH igh-----1IM oderate. Jerry· I: I I : I I I I I ti~ tll------------I B I None--------I )6.0 >60 I Low--------!High-----: Low. Kim I: I I : : I I I I I 42----------------1
B INone-------->6.0 >60 lModerate---lliigh-----!Low. Lamphier I : : I : I I : : : 43----------------: C : None-------->6.0 >60 : Low--------1High-----: r-1oderate. Limon : I : : • •
I I I I , , I I 44----------------1 B INone-------->6.0 >60 lModerate---1Moderate lLow. Morval :,, ,, : 45-: 53': I Parachute--______ I Rhone----________ :: ,, 54, 55, 56--------1 ,,
,, ,, None-------->6.0 >>6600 ,,lM oderate---l,,M oderate !,,L ow. None-------->6.0 >60 lModerate---IHigh-----1Low. I ,I ,I ,I --------: >6.0 >60 lModerate---lHigh-----1Low. : I : :
! : 1 I : ------: >6.0 lHard lHoderate---lModerate lLow. , • I I I I I I I I , ' , , > " , 6.0 >60 :Low--------IModerate ILow. >60 ,, 40-60 l,,H ard I >60 I I I I I : : >6.0 20-40 lRippable
l,M oderate---1,M oderate !, Low. ,, ,, , ,, ,, , , , ,,l Moderate---1,,M oderate ,,l L ow. IModerate---1Moderate :Low. I I 1 : 20-40 l,,R ippable I,, 20-40 ,l Rippable , , , 40-60 lRippable
: !Low--------:High-----1Moderate. , : Potts I >60 : 57-, 58-, 59·: : Potts---------___ l : etonso--______ l ,, 60, 61-----_______ \ Rhone 62-: Rock outcrop. Torriorthents. See footnote
at end of table. ~ -; >60 40-60 Rippable , , ,, ,, l,L ow--------I,H igh ____ _ ,,, \Moderate---:Moderate l-1oderate. Low. 1 ! . II If;; :1> :D m :J> 8 5 :D :1> 8 ... ""