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Home My WebLink About1.0 ApplicationJuly 9,1983 5homrock Surveying 5ervic¢s P.O. Box 35 Tim Callahan Silt, Colorado 81652 Telephone (303) 876-5693 County Commissioners Garfield County, Colorado Dear Sirs, I herewith submit all necessary information for the Stoner Sub- division sketch plan. It is my request to subdivide a ,a+ acres parcel into two parcels of 15 and 21 acres. An existing water system exists, serving both parcels. There are no construction costs. I am also requesting, since this subdivision creates only one new lot with no major subdivision problems, that (upon sketch plan approval) I be allowed approval by the exxemption plat process. Please inform my representative (Tim Callahan) if you require further information or clarification of any information provided. sincerely, ''7•• Jake Stoner `_-78_9' 33L7'5 7066 7009 6875 ,93 Ac: 97 1 PJ 11 9'_a. •11. O 3 4R - 32 u Mulford r' �g BM 627: DEW/ RICHARD D. LAMM Governor DIVISION OF WATER RESOURCES WATER DIVISION V Lee R. Enewold Division Engineer P.O. Box 396 Glenwood Springs, Colorado 81601 (303) 945-5665 JERIS A. DANIELSON State Engineer 7- 7- ;3 - 4d (24 i-e-,-J*-J O17L/7J /7 G7' /9. S`y,i/- sl)//q ,a- 1? - • µRJ.S ev. 76 Application must be complete where applicable. Type or print in BLACK INK. No overstrikes or erasures unless initialed. uOLORADO DIVISION OF WATER RESOURCES U' 818 Centennial Bldg., 1313 Sherman St., Denver, Colorado 80203 " ( ( FOR: PERMIT APPLICATION FORM A PERMIT TO USE GROUND WATER A PERMIT TO CONSTRUCT A WELL A PERMIT TO INSTALL A PUMP ( ) REPLACEMENT FOR NO. (X)OTHER WATER COURT CASE NO 1 _ I• RECEiVEJ SEP - 6 1983 WATER RESOURCES firta•ENSIMIS ,(ECEIVED AUG 1 8 1983 MATER RESOURCES Q%iE P ENGINEER SEM (1) APPLICANT • mailing address NAME t_oner STREET 5372 County CITY Carbondale, Road No. 100 Colo. 81623 (State) (ZIP) TELEPHONE NO 1-303-963-3178 (2) LOCATION OF PROPOSED WELL County SE % of the SE V4, Section 19 Twp. 7 S , Rng. 87 W MS) IE,WI Garfield 6th P.M. (3) WATER USE AND WELL DATA Proposed maximum pumping rate (gpm) lOgpm Average annual amount of ground water to be appropriated (acre-feet): 1.0 acre/ft. Number of acres to be irrigated: —0— Proposed total depth (feet): 192 feet Aquifer ground water is to be obtained from: Unknown Owner's well designation GROUND WATER TO BE USED FOR: ( ) HOUSEHOLD USE ONLY (X) DOMESTIC (1) ( ) LIVESTOCK (2) ( ) COMMERCIAL (4) no irrigation (0) ( ) INDUSTRIAL (5) ( ) IRRIGATION (6) ( ) MUNICIPAL (8) ( ) OTHER (9) DETAIL THE USE ON BACK IN (11) (4) DRILLER Name Kuchler Water Wells Street 1560--6450 Road City Montrose, Colo_ Telephone No.24_9-7844 R7 401 (State) (Zip) Lic. No 864 FOR OFFICE USE ONLY: DO NOT WRITE IN THIS COLUMN C' 9125 261 113 Receipt No Basin Dist. CONDITIONS OF APPROVAL (This well shall be used in such a way as to cause no material injury to existing water rights. The issuance of the permit does not assure the applicant that no injury will occur to another vested water right or preclude another owner of a vested water right from seeking relief in a civil court action. 2) THE USE OF GROUND WATER FROM THIS WELL IS LIMITED TO FIRE PROTECTION, ORDINARY HOUSEHOL. PURPOSES INSIDE A SINGLE-FAMILY DWELLING AND ,GUEST HOUSE, THE IRRIGATION OF NOT MORE THAN NONE ACRE OF HOME GARDENS AND LAWNS, AND THE WATERING OF DOMESTIC ANIMALS. 3) APPROVED PURSUANT TO .CRS 1973,.37-92-602 (3)(b)(II) AS THE ONLY WELL ON A TRACT OF LAND OF ACRES DESCRIBED AS See- rr L S«r T: 4) ISSUANCE OF THIS PERMIT CANCELS PERMIT 17473. OThERS COPY APPLICATION APPROVED1 PERMIT NUMBER .1.32`5? DATE ISSUED SEP 1 6 1983 EXPI ON DATE SEP 161985 7/17 BY (S I.D. ER) COUNTY (5) THE LOCATION OF THE PR( ')SED WELL and the area on which the water will be used must b ,tdicated on the diagram below. Use the CENTER SECTION (1 section, 640 acres) for the well location. - + - - -i-- - --}- - ---E- - 1 MILE, 52130 -FEET �l i f -t- I 4 •1 NORTHf * L w NORTH SEt ION LINE 1- — --t- SOUTH SECTION LINE -I- m to 4 -I- — H- _ The scale of the diagram is 2 inches = 1 mile Each small square represents 40 acres. -- 1 - WATER EQUIVALENTS TABLE (Rounded Figures) An acre-foot covers 1 acre of land 1 foot deep 1 cubic foot per second (cfs) ... 449 gallons per minute (gpm) A family of 5 will require approximately 1 acre-foot of water per year. 1 acre-foot ... 43,560 cubic feet ... 325,900 gallons. 1,000 gpm pumped continuously for one day produces 4.42 acre-feet. (6) THE , ;LL MUST BE LOCATED by distances from section lines. 820 ft. from south " sec.'lin (north or south) 800 ft from LOT BLOCK SUBDIVISION N/A east (east or west) FILING # sec. line (7) TRACT ON WHICH WELL WILL BE LOCATED Owner: Jake Stoner No. of acres 36* the only well on this tract? yes . Will this be (8) PROPOSED CASING PROGRAM Plain Casing existing 6"0 from 0 ft to 40 ft 4"40 from 40 ft to 180 ft Perforated casing 4"180 from 180 ft. to 192 ft in from ft to ft (9) FOR REPLACEMENT WELLS givedistance and direction from old well and plans for plugging it: N/A (10) LAND ON WHICH GROUND WATER WILL BE USED: Owner(s): Jake Stoner No. of acres: 36 Legal description: See attached legal desc. (11) DETAILED DESCRIPTION of the use of ground water: Household use and domestic wells must indicate type of disposal system to be used. U e of domestic well for househol• maximum 6000 sq.ft. lawn. per each dwelling (2). Existing individual septic systems on both houses. IP • 1• • (12) OTHER WATER RIGHTS used on this land, including wells. Give Registration and Water Court Case Numbers. Type or right Used for (purpose) Irrigation(3 ditches) irrigation/rtrnps Description of land on which used This lard (13) THE APPLICANT(S) STATE(S) THAT THE INFORMATION SET FORTH HEREON IS TRUE TO THE : ST •F HIS KNOWLEDGE. / fir ��_ SIG T RE OF APPL 1C Use additional sheets of paper if more space is required. I ' I I I IX I 1- — --t- SOUTH SECTION LINE -I- m to 4 -I- — H- _ The scale of the diagram is 2 inches = 1 mile Each small square represents 40 acres. -- 1 - WATER EQUIVALENTS TABLE (Rounded Figures) An acre-foot covers 1 acre of land 1 foot deep 1 cubic foot per second (cfs) ... 449 gallons per minute (gpm) A family of 5 will require approximately 1 acre-foot of water per year. 1 acre-foot ... 43,560 cubic feet ... 325,900 gallons. 1,000 gpm pumped continuously for one day produces 4.42 acre-feet. (6) THE , ;LL MUST BE LOCATED by distances from section lines. 820 ft. from south " sec.'lin (north or south) 800 ft from LOT BLOCK SUBDIVISION N/A east (east or west) FILING # sec. line (7) TRACT ON WHICH WELL WILL BE LOCATED Owner: Jake Stoner No. of acres 36* the only well on this tract? yes . Will this be (8) PROPOSED CASING PROGRAM Plain Casing existing 6"0 from 0 ft to 40 ft 4"40 from 40 ft to 180 ft Perforated casing 4"180 from 180 ft. to 192 ft in from ft to ft (9) FOR REPLACEMENT WELLS givedistance and direction from old well and plans for plugging it: N/A (10) LAND ON WHICH GROUND WATER WILL BE USED: Owner(s): Jake Stoner No. of acres: 36 Legal description: See attached legal desc. (11) DETAILED DESCRIPTION of the use of ground water: Household use and domestic wells must indicate type of disposal system to be used. U e of domestic well for househol• maximum 6000 sq.ft. lawn. per each dwelling (2). Existing individual septic systems on both houses. IP • 1• • (12) OTHER WATER RIGHTS used on this land, including wells. Give Registration and Water Court Case Numbers. Type or right Used for (purpose) Irrigation(3 ditches) irrigation/rtrnps Description of land on which used This lard (13) THE APPLICANT(S) STATE(S) THAT THE INFORMATION SET FORTH HEREON IS TRUE TO THE : ST •F HIS KNOWLEDGE. / fir ��_ SIG T RE OF APPL 1C Use additional sheets of paper if more space is required. RICHARD D. LAMM Governor OFFICE OF THE STATE ENGINEER DIVISION OF WATER RESOURCES 1313 Sherman Street -Room 818 Denver, Colorado 80203 (303) 866-3581 July 29, 1983 Ms. Cynthia M. Houben Garfield County Planning Department 2014 Blake Avenue Glenwood Springs, CO 81601 Re: Stoner Exemption Dear Ms. Houben: JERIS A. DANIELSON State Engineer We have reviewed the above referenced proposal to separate 36.4 acres into two tracts each of which has an existing dwelling. The existing dwellings are both served by well number 17473. Our records indicate well number 17473 was issued as a livestock well. The current domestic use is not in compliance with the well permit. This office cannot authorize a use of a well which is not in conformity with the well per- mit. We could not recommend approval of this proposal on the basis that the well be shared even though this is an existing use. If the county did grant such an approval, we would encourage that lot purchasers be advised that the water source may not be reliable. The applicants could apply for a new permit to allow domestic use of the existing well in two dwellings. Unfortunately, we believe such an application would be denied unless the applicant could demonstrate two dwellings were necessary for his own use. If a permit were denied, the applicant could possibly go to Water Court and seek adjudication of the well allowing it to serve two dwellings on the basis of historic use. CRS 1973, 37-92-302(2) requires a per- mit to be approved, denied, or six months must have passed since the applicant applied for a well permit before a Ruling of the Referee could be entered in a case involving the construction of a well. We could only recommend approval of the plat once a well permit allowing two dwellings had been issued or a Water Court decree allowing the use of the well has been obtained. Another option is for the applicants to use the existing well to serve one of the existing dwellings and obtain a new well permit for the other. Unfortunately, we could not make an additional well permit available since the use of the existing well is technically in violation of the well permit. Ms. Cynthia M. Houben Page 2 July 29, 1983 If the applicants are not able to obtain a Water Court decree allowing the proposed and existing use of the well, it may be necessary for them to develop a plan for augmentation through the Water Court. Sincerely, 44' Hal D. Simpson, P.E. Assistant State Engineer HDS/KCK:ma cc: Lee Enewold, Div. Eng. Ralph Stallman STONER SUBDIVISION GEOLOGIC AND SOILS ANAYSIS AND RADIATION EVALUATION GEOLOGY ANALYSIS: See attached report. SOILS ANALYSIS: Soil conservation maps are attached herewith. RADIATION EVALUATION: There appears to be no radiation hazard in this area, has been no history of radiation on this site and is no foreseeable hazard to this subdivision. T Sr f r A' SOIL CHARACTERISTI !Depth to Bedrock Texture Surface Subsoil Substratum 7e. P/J° r' Unified/AASHO Classification: Permeability (below 2 feet) : Percent Coarse Fragments (gravel, cobble, stone) . Soil Reaction (pH) Shrink -Swell Potential Potential Frost Action'_ (surface) Flood Hazard Hydrologic Croup Corrosivity - Steel - Concrete DEGREE & KIND OF LIMITATIONS (0 is Slight, M is Moderate, S is Severe) deep silt loam silty clay loam, clay loam clay loam, silty clay loam, silt loam ML, CL; A-4, A-6 moderate 0 to 10 percent 7.4 - 8.4 moderate moderate none B high low Septic Tank Absorption Fields : M - permeability rate, slope Sewage Lagoons : S - steep slopes, seepage Sanitary Landfill - Trench : M - seepage - Area : M - seepage Shallow Excavations : M - steepness of slope Dwellings w/basements w/o basements Local Roads and Streets SUITABILITY AS A SOURCE OF.... Daily Cover for Landfill Topsoil Sand Cravel Roadfill OTHER SOIL FEATURES • : M - steepness of slope : M - shrink -swell, low strength, steep slopes : M - shrink -swell, low strength, steep slopes : Fair - seepage, steep slopes : Fair - steepness of slope : Unsuited : Unsuited : Poor - low strength, shrink -swell, steep slopes "ADVANCE COPY SUBJECT TO CHANGE" NOT TO BE USED IN PLACE OF ON-SITE INVESTIGATION. SOIL CHAItACTERISTICS Lo t -- Depth Depth to lledrork .Own 1 •. r•,1�1-•I n :it Texture Surface . :t.ond lore%, cobbj.•y loam, gravelly loam Subsoil Substratum : veru :t. r.v loam:, vrry cobr,ly loon Unified/AASHO Classification: 1'L, CL -!/L, .;C; A-4 Permeability (below 2 feet) : rapid Percent Coarse Fragments (gravel, cobble, stone) . 40 td t.;, 661-6140. Soil Reaction (pH) : 7.9 - r..4 Shrink -Swell Potential : low Potential Frost Action (surface) : lowFlood Hazard , none Hydrologic Group : R Corrosivity - Steel : moderate - Concrete : mod.:rntc DEGREE & KIND OF LIMITATIONS (0 is Slight, M is Moderate, S is Severe) Septic Tank Absorption Fields : S - lurgi. :;t..,::os, steep slopes Sewage Lagoons . - :teen Si Onex, saeoage, large ::tones Sanitary Landfill - Trench . - Area . Shallow Excavations Dwellings w/basements w/o basements - se.;p„on, lartr: stones - stoop i1 pt's, seoparH - lurpn vt.or:i::, c,ntbanks eavt,, ::tens :;lepos - 1r.rre stones, steep slopes S - stoop ohne:, large stones Local Roads and Streets : :i - steer: slops:., large stones SUITABILITY AS A SOURCE OF.... Daily Cover for Landfill : Poor - large stones, steep slopes Topsoil . Poor - lf,rge stones, sten slopes Sand . 'tnsu:t„e Gravel . ";suited Roadfill . 1' . - OTHER SOIL FEATURES har,i: pn,rriea'.; 1it.v uu,v Q:,USi t, pelleti:m hszur," "ADVANCE COPY SUBJECT TO CHANGE" NOT TO BE USED IN PLACE OF ON-SITE INVESTIGATION Depth to Bedrock deep Texture Surface silt loam Subsoil silty clay lonm, clay loam Substratum . , clay loam, silt loam, silty Unified/AASHO Classification: I4L, CL; A-4, A-6 Permeability (below 2 feet) : moderate Percent Coarse Fragments (gravel, cobble, stone) . 0 to 10 percent Soil Reaction (pH) : 7.4 - 8.4 Shrink -Swell Potential moderate Potential Frost Action (surface) moderate Flood Hazard none Hydrologic Croup B Corrosivity - Steel high - Concrete low DEGREE & KIND OF LIMITATIONS (0 is Slight, M is Moderate, S is Severe) Septic Tank Absorption Fields : Al - permeability rate Sewage Lagoons : 11 - seepage Sanitary Landfill - Trench : l.1 - seepage - Area : M - seepage Clay loam Shallow Excavations : 0 Dwellings w/basements : 0 w/o basements : 11 - shrink -swell, low strength, frost action Local Roads and Streets : M - shrink -swell, low strength, frost action SUITABILITY AS A SOURCE OF.... Daily Cover for Landfill : Fair - seepage Topsoil : Good Sand : Unsuited Gravel . Unsuited Roadfill : Poor - low strength, shrink -swell, frost action OTHER SOIL FEATURES "ADVANCE COPY SUBJECT TO CHANCE" NOT TO BE USED IN PLACE OF ON-SITE INVESTIGATION. MOO %Pk SAMUELSON PUMP CO. 1000 GLEN OAK LANE GLENWOOD SPRINGS COLORADO 81601 Jake Stoner 5372 County Rd. 100 Carbondale, Co. 81623 kitten: tr. Stoner WATER SYSTEMS SALES, SERVICE & INSTALLATION 945-6309 June 13, 1983 On June 10, 1983 a well tec:t was conducted on a well at 5372 County Road 100. the followini infor-m.,tion was obtained: Approx. well depth • ^---------190, Casing size (steels---- --6 1/4" tandinn water level 77'-0" Max. draw down 0 15 gprn.-77'-10" ,ater level stable after_ 20 Yiin. at 15 come Total test time 2 hrs. Production is greater than 15 gpm. Thi; test was conducted with the existing pum and equipment. The pump is a submersible Sta—Rite i',oclel +35i'. The maximum pumping rate with the existing pump is 15 qpm. over the well head. The draw down on this well would indicate a production of much greater capacity than the pumping .rate during the test. Sincerely, ce-rs,„44m1 Raun Samuelson Recorded at..../6:0 o4. _k" M., AUG 5..193 e. vT 4213 Brl K 6{ )J YtGf j,7 Reception No 1.. Qecorder. Perry S. Nissler, Trustee whose address is 1660 Lincoln St. , Suite 1518, Denver, Colorado 80264 City and County of Denver , and State of Colorado , for the consideration of ten dollars and other good and valuable consideration dolling, in hand paid, hereby sell(s) and convey(s) to Jake Stoner and Carolyn Stoner, as joint tenants GARFIELD AUG 51982 State Doc. Feo $ —. County of Garfield, and State of Colorado the following real property in the County of Garfield , and State of Colorado, to wit: See Exhibit A attached hereto with all its appurtenances and warrant(s) the title against all persons claiming under (me) (us). Signed and delivered this 2nd day of Au gu , 1982 In the presence of Pefry`5' Nissler, Trustee EXHIBIT A TO SPECI O JA WARRANTYSTODEED DATED AUGUST 2/ 1982, R AND CAROLYN STONER FROM PERRY S. NISSLER, TRUSTEE A parcel of land situated in the SEa of Section 19 and the Range 87 West of SA of Section 20, all in Township 7 South,gel or a do, the Sixth Principal Meridian, Garfield County, more particularly described as follows: Beginning at the Witness Corner which bears 5.02°270,'229.. and 66.0 feet from the corner commototn SectN ions 19, 20,W. 30, a brass cap monument in place; fence along County Road 1996.08 feet,the to a point on the easterly thence leaving said True Point of Beginning; fence#108,thence 5.03°39'20"W. 6.0 5.eet to a fence 134as nett, and in lace; thence 396.09 feet to a as constructedlace thefollowing along a fence as constructedcaand .in°place"t. 165.40lfeet;g bearings and distances; thence 5.70°30 thence 5.29°03'35"W. 172.06 feet; 193.32 feet; thence 5.21°15'28"E• 243.24 feet; thenceene 5.85°25'51"W. 151.837.feet;lthence evas courses and N.85°25'20"W. 1137.33 feet to a fence as constructed and in place; thence along said fence the followinggtcoure S. distances; thence N.03°39'49"E. 52.00 feet; 74°14'17"W. 522.61 feet; thence N.34°48'54"W. 267.79 feet; placeetett thence along a' fence as constructedaandnce in intersection; thence asotg parallels the easterly side of County Road #100 and the following courses and distances; thencetN.29°21'5O" 9'330.23 3 feet; thence N.22°06'25"E. 80.94 feet; thence 276.79 feet; thence N.04°18'10the 179.61True feet; Be N.00°51'21"W. 154.52 feet; Renu riled at _ la. 044 ___.. __del lc A n7Di • %11• 'Reception No. . 3,31429___/11 eAe--et Perry S. Nissler , Trustee whose address is 1660 Lincoln St. , Suite 1518, Denver, Colorado 80264 City. and County of Denver , and State of AUG_._ 5.1982 _ Brix (3V5 i'tSE�i 3fi Colorado for the eonsideratiun of ten dollars and other good and valuable consideration Dull.,i,, in hand paid, hereby sells) and quit claim(s) to Jake Stoner and Carolyn Stoner, as joint tenants, whose address is 5572 100 Road, Carbondale, CO 81623 property. in the GARFIELD AUG 5 1982 State Doc. Fee County of Garfield , and State of Colorado , the following real County of Garfield , and State of Colorado, to wit: Three—tenths (.3) shares of the Pat Rodgers Feeder Ditch it#at(atGap{gyp i=ecrange Signed this 2nd day of August , 198 STATE OF COLORADO, County of Garfield The foregoing instrument was acknowledged before me this 2nd :lay of August ,19 82 ,by Perry S. Nissler, Trustee. czi ":+iiilllun IIU IAA 4 JrCurl -1 ] .1 n To 5 1 1 MEI • ,3�.� .i,i,.,€wi ✓: .. 1v.'C✓f. t��::5'at✓atii 5 Ab 0. Ag ro 0 o0 ]-. • C G 0 Ci ° K' 0. 0 ^ a Co O P - n P. w„ccTJ C N ' F 0 o N (D a DI 0. N ti Er: a M o 0 o f 2'a y o m �. rt r- 0 ° ao di DI '0 o 5 Fr Ca y a. - 0.o H b w ro yy y R. OIVH a p•a' CD £ ti O0 7 1 a ti N 0 cal W o `< 0.rn ii a o -.1 •o E o 0 0.• e .o_ 0 00 Fe. N3 0. n N oe. y O Na 0 .^ ter O .” • o ° a°.�/ ^ o o c. a" A a a a y X O w .'� Q, v Pth w ° a• " c'o o N y .• -b a P. c ^a o 0 1 S co .1 0 b a 0 P. 0. a `at k -4' Rv.� 0 °^ 13 ro N Cy. P. .-. '< 0 t { �• w ro , tz K; t a � b 0 • O n =' O M O p o a Py DI In az F n 'O n• O y.0 • ° a co M r " Pi r• o a o ° a R] P oKi —•0 •-•4 `< E O • 0 n `< G W a y p 'CI 1C 0 �ubTO-dhzitiy slYLL shares of the capital stock of w m o• mut ® • 75 v s� N PT X _ IS • tig Ca 311'1VA tiVd ON 3•Cii 7L y0, li] INCORPORATED UNDER THE LAWS OF THE STATE OF COLORADO • ,S owl <]IOilii 11> m UI r'� NOkTK _ Tbb fl". •SQy7 i:MAniAi �: Zl 06 G130019 ?73-75 ?73-75 Qa Q QI Qb Q9 Qd QTa Tbp Tt Td Tbb Tby PRECAMBRIAN Precambrian X DESCRIPTION OF MAP UNITS Formations for which no map symbol is shown are grouped with other stratigraphic units to fmm map units UNCONSOLIDATED DEPOSITS (HOLOCENE): Alluvium—Gravel, sand, and silt in stream valleys and alluvial fans Eol ian deposits—Windblown sand and silt Talus deposits and rock glaciers LANDSLIDE DEPOSITS (HOLOCENE AND PLEISTOCENE)—On Grand and Battlement Mesas (southwestern corner of quadrangle), consist principally of large slump blocks of basalt irregularly veneered with young (Pinedale) glacial drift. Elsewhere, include mud - flow and some talus deposits. Many small bodies not mapped YOUNG BASALT (HOLOCENE AND PLEISTOCENE)—In Roaring Fork valley north of Aspen, 1.5 m.y. (million years) old; along Rock Creek north of McCoy, 0.64 m.y. old (Larson and others, 1975, p. 166). Near Dotsero, 4,150 years old (Giegengack, 1962) Volcanic cinder cone or crater UNCONSOLIDATED DEPOSITS (PLEISTOCENE): Young gravels (Bull Lake and younger)—Stream, terrace, and outwash gravels Young glacial drift (Bull Lake and younger)—Unsorted bouldery glacial deposits (till) and associated sand and gravel deposits Old gravels and alluviums (pre -Bull Lake)—Terrace, outwash, and pediment gravels Old glacial drift (pre -Bull Lake)—Unsorted bouldery glacial deposits (611); morainal form sub- dued or lacking HIGH-LEVEL ALLUVIUM (PLEISTOCENE AND/OR PLIOCENE)—Ane-grained to bouldery alluvial deposits and gravels; preserved mainly on ridge tops: may not all be of same age: in southwest part of quadrangle. characterized by abundant basalt boulders and in places has been mapped previously as basalt BROWNS PARK FORMATION (MIOCENE)—Fluvial ashy siltstone, claystone, sandstone, conglomerate. and thin beds of air -fall ash; loosely consolidated; conglomerate at base. Locally interbedded with basalt (Tbb unit). Thickness >1,000 ft (305 m) south of State Bridge TROUBLESOME FORMATION (MIOCENE)—Chiefly siltstone: contains many beds of volcanic ash and some of sandstone and conglomerate. Thickness >500 ft (152 m) in Williams Fork valley. Term is used in Middle Park for Miocene rocks largely equivalent to Browns Park Formation west of the Gore Range DRY UNION FORMATION (PLIOCENE AND MIOCENE)—Light-brown sandy siltstone and in- terbedded friable sandstone, conglomerate, and volcanic ash. Thickness >3,000 ft (915 m) in Arkansas River valley southwest of Leadville BASALT OF BIMODAL SUITE (PLIOCENE AND MIOCENE)—Dense black resistant alkali basalt in lava -Flow layers 5-200 ft (1.6-61 m) thick, and interbedded tuffs and volcanic con- alomerates. Greatest preserved thicknesses are 900 ft (275 m) on White River Plateau and 800 ft (244 m) on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y. (Larson and others. 1975) BASALTIC DIKES AND PLUGS (PLIOCENE AND MIOCENE)—Probable feeders of basalt flows of Tbb unit; also intrusive into the flows Dike RHYOLITIC ROCKS OF BIMODAL SUITE (PLIOCENE AND MIOCENE)—In plugs, dikes, and small flows Dike UPPER TERTIARY INTRUSIVE ROCKS (MIOCENE)—Sodic granite of Treasure Mountain south of Marble, and satellitic plugs and dikes. About 12.5 m.y. in age (Obradovich and others, 1969) Tor 1 ACI -11.P1 nut TI ICC tni int flFr`IF1_1"In,e., woUorl :nff anti t,itrnnh,,ro- nnnrinall r in 6$3: w' .brl PPwm TiPcm Pm Pmb Pmbe Pe Pee MDr OEr 11 STAT b b tl u c CHIN MART s E 5 WEBJ sr sr— a WEBJ CHIN MINT c 0 In a b E te a a BELL s. a fz MINT Eve it EAGL s c 1 EAGL s c n MISS r r (' ORD( s ( it D y c b tl a