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<br />14 <br />SOIL SIIRVEY <br />Runoff is rapid on this soil. The erosion hazard is high. <br />This soil takes in water slowly. It is difficult to work. <br />About half of the acreage is used for irrigated crops, <br />and the rest for dry.]and crops. (Capability units IPe-1, <br />i; igated, and VIe-1, nonirrigated; tree suitability group <br />6 <br />J.uget_Sezies <br />The Juget series is mnde up of shallow, somewhat ex- <br />cessively drained soils. These soils formed on mountain <br />slopes and ridges in sandy residuum weathered from <br />granite. Slopes are 9 to 55 percent. Elevations are fi,300 to <br />5,200 feet. At lower elevations the native vegetation is <br />mainly ponderosa pine, and at higher elevations it is <br />Engelmann spruce and Douglas-fir with an understory of <br />grass. Annual precipitation is 18 to 24 inches. ivfean annual <br />air temperature is 43° to 46° F., and the frost-free season <br />is about 80 to 120 days. <br />In a representative profile the surface layer, about 6 <br />inches thick, is dark-gray very gravelly sandy loam. The <br />underlying material, about 5 inches thick, is brown very <br />gravelly ]oamp sand. IInderlping this layer is granite. <br />Soil reaction is slightly acid. <br />Juget soils have rapid permeability. Available water <br />capacity for the profile is ]ow. Roots can penetrate to a <br />de th of less than 20 inches. <br />These soils are used mainly for grazing, although some <br />Wrens with scattered trees are used for recreation, for- <br />estry, and homesites. The grass cover must be maintained <br />to help prevent erosion. <br />Representative profile of Juget very gravelly sandy <br />loam, in Juget-Rock outcrop complex, 9 to 55 percent <br />slopes, located 2,540 feet north and 650 feet east of the <br />southwest corner of sec. 11, T. 1 N., R. 71 Rr.: <br />AI-0 to 8 inches, dark-gray (lOYR 4/1) very gravelly sandy <br />loam, black (7.OYR ?/1) when moist; weak, very <br />fine, grnnular strndure; soft, very friable; 60 per- <br />cent gravel and stone; slightly add; clear, smooth <br />borrndflry. <br />C--L to 11 inches, brown (lOYR 5/3) very gravelly loamy <br />send, dark gnylsh brown (lOYR 4/2) when moist; <br />massive; hard, friable; about SO pettrnt fine gravel; <br />sllgluly acid; clan r, wavy boundary. <br />R-ll inches, hnM granite bedrock. <br />The Al horizon ranges from 4 to 8 Inches in thic6-ness and <br />from very gravelly sandy Inam to very gravelly loamy send <br />In texture. DeMh to hedrock ranges from 10 to 20 Inches. <br />The average rock fragment mntent of fhe soil ranges from <br />50 to SO percent end (s dominantly 5ne gravel. <br />Juget=ltoclryo u tc_rop~,ca m p le>R 9Atoo~555gperc~t~s to pest-' <br />(JrFI.-This complex is made up of about 50'percent7uget <br />very gravelly sandy loam and about 30 percent Rock <br />outcrop. This complex is in the western part of the Area. <br />The profile of the .Iuget soil in this complex is the one <br />described as representative of the Juget series. <br />Incllidecl with this complex in mapping are small areas <br />of Peyton soils near drainageways and a few small areas <br />of Aliens Park soils. These included soils make up about <br />20 percent of each mapped area. <br />Runoff is rapid on this complex. The erosion hazard is <br />high. Juget soils take in water readily, but they retain <br />only limited amounts for plant use because of their shal- <br />low depth to bedrock. <br />None of this complex is suitable for cultivation. It is <br />in grass and scattered terees and slu•ubs: In the past, it <br />was used far grazing livestock and for forestry, but now <br />many areas are use3 for homesites, recreational purposes, <br />and wildlife habitat. (Capability unit VIIs-1, nonirri- <br />gated ;tree suitability group 2) <br />Kim Series <br />The Kitn series is made up of deep, well-drained soils. <br />These soils formed on terraces in calcareous, loamy allu- <br />vium. Slopes are 0 to 3 percent. Elevations are 4,900 to <br />5,500 feet- Tha native vegetation was mainly short grass- <br />es. Annual precipitation is 12 to 18 inches. Mean annual <br />air temperature is 48° to 52° F., and the frost-free seaso^ <br />is about 140 to 155 days. <br />In a representative profile the surface layer, about 11 <br />inches deep, is strongly calcareous, pale-brown clay loam. <br />The underlying material is strongly calcareous, pale- <br />bron-n and brown sandy clay loam and clay loam that <br />reaches to a depth of 60 inches or more. Some soft lime <br />segregations are in the upper part of this material. In the <br />surface layer, soil reaotion is mildly alkaline, and in the <br />underlying material, it is moderately alkaline. <br />Kim soils have moderate permeability. Available water <br />capacity for the profile is high. Roots can penetrate to a <br />depth of 60 inches or more. <br />These soils are used mainly for irrigated crops and are <br />productive if well managed. <br />Representative profile of I{im clay loam in Nunn-Kim <br />complex (0 to 3 percent slopes), located 900 feet north <br />and 60 feet east of the southwest corner of sec. 0; T. 2 N., <br />R. 69 ~9. <br />App to 1] Inches, pale-brown (lOYR 0/3) clay loam, brown <br />(lOYR u'/3) when moist; weflk, medium, snbangalar <br />blocky structure: hard, friable; strongly calm reous; <br />mildly alkaline; clear, smooth bowdary. <br />Clm-11 to 31 Inches, pale-brown (lOYR 0/3) sandy clay <br />loam, brown (lOYR 5/3) when moist; week, coarse, <br />subnngular blocky structure; hard, very triable; <br />stronSly cake renus nitL few, medium end coe rse. <br />white lime segregntlans; moderately alkaline; clear, <br />smooth bowdarr. <br />C2cr~1 to GO Inches, brown (lOYR 5/3) clay loam, brown <br />(lOYR 413) when moist; mamive; hard, 8rm; <br />strongly cnlca teous and contains concretloas o[ cal- <br />clnm rnrbonate; moderately ell-allne. <br />The A horizon ranges from S to 14 Inches in thiclmess and <br />from sandy clay loam to clay loam 1n teztrrre. <br />In this survey area Flm lolls are mapped only In assoel- <br />atlon a-IM Nunn soils. <br />Hutch Series <br />The Kutch series is mnde up of moderately deep, well- <br />drained soils. These soils formed on uplands and valley <br />sides in clayey residuum weathered from sedimentary <br />rock. Slopes are 3 to 9 percent. Elevations are 4,900 to <br />5,500 feet. The notice cegetntion is mainly short and mid <br />grasses. Annual precipitation is 12 to 18 inches. Dfean <br />annual air temperature is 48° to 52° F., and the frost- <br />free season is about 140 to 155 days. <br />In a representative profile the surface layer, about T <br />inches thick, is dark grayish-brown clay loam. The sub- <br />soil is brown clay about 15 inches thick. The substratum <br />is calcareous, light brownish-gray clay about 8 inches <br />Eruin .1~ ~, ~.. <br />