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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 lrst for dryland crops. (Capability units IVe-1,
<br />irrigated, and VIe-1, nonirrigated; tree suitability group
<br />6)
<br />Juget~Ses;ies
<br />The Juget series is made 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 6,300 to
<br />8,200 feet. At lower elevations the native vegetation is
<br />mainly ponderosa pine, and at higher elevations it is
<br />Engelmann spruce rand 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 loamy sand. IInderlying this layer is granite.
<br />Soil reaction is slightly acid.
<br />Juget soils have rapid permeability. Available water
<br />capacity for the profile is low. Roots can penetrate to a
<br />de th of less than 20 inches.
<br />These soils nre used mainly for grazing, although some
<br />areas with scattered trees are used for recreation, for-
<br />estry, rand homesites. The grass cover must be maintained
<br />to help prevent erosion.
<br />Representative profile of Juget very grnvelly sandy
<br />loam, in Juget-Rock outcrop complea, 9 to 55 percent
<br />slopes, located 2,540 feet north rand 650 feet east of the
<br />southwest corner of sec. 11, T. 1 N., R. 71 `V.:
<br />A3-0 to 8 inches, dark-gray (lOYR 4/1) very gravelly sandy
<br />loam, black (7.OYR ?/1) when moist; creek, very
<br />doe, granular structure; sot[, eery friable; 60 Der-
<br />cent gravel and stone; all ghtly add; clear, smooth
<br />boirndarp.
<br />C-8 to ll loch es. brown (lOYR 5/3) very gravelly loamy
<br />sand, dark gnyfsh brown (lOYR 4/2) when moist;
<br />massive; hard, friable; about 80 percent 5ne gravel;
<br />slightly acid; Clear, wavy boundary.
<br />R-11 inches, hard granite bedrock.
<br />The Al horizon ranges from 4 W 8 Inches In thiclrness and
<br />from very gravelly sandy Inam to very gravelly loamy send
<br />fn texture. Depth to hedrock ranges from 10 to 20 inches.
<br />The oversee rock fragment content rat the sail ranges from
<br />50 to 70 percent and Is domimntly 5ne gravel.
<br />Ja get=jtocl~6ptcropycom pl e~9pto~55,lpr~ce„nts_ lopes~'-~
<br />(JrFI.-This complea is made up of about 50 percent Juget
<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 complea is the one
<br />described as representative of the Juget series.
<br />Inclticlecl with this complex in mapping rare 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 complea. 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 complea is suitable for cultivation. It is
<br />in grass and scattered terees and shrubs: In the pest, it
<br />was used for grazing livestock and for forestry, but now
<br />many areas are used for homesites, recreational purposes,
<br />and wildlife habitat. (Capability unit VIIs-1, nonirri-
<br />gated ;tree suitability group 2)
<br />Kim Series
<br />The Kim series is made up of deep, well-drained soils.
<br />These soils formed on terraces in calcareous, leemy allu-
<br />vium. Slopes are 0 to 3 percent. Elevations are 4,900 to
<br />5,500 feet. The native vegetation was mainly short grass-
<br />es. Annual precipitation is 12 to 18 inches. 1lfean annual
<br />air temperature is 48° to 52° F., and the frost-free season
<br />is about 140 to 155 days.
<br />In a representative profile the surface ]aver, about 11
<br />inches deep, is strongly calcareous, pale-brown clay loam.
<br />The underlying material is strongly calcareous, pale-
<br />brown 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 reaction 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 rare used mainly for irrigated crops and are
<br />productive if well managed.
<br />Representative profile of Kim clay loam in Nunn-Kim
<br />complea (0 to 3 percent slopes), located 900 feet north
<br />and 60 feet east of the southwest corner of sec. 9; T. 2 N.,
<br />R. 69 ~V.:
<br />Ap-O to 11 Inches, [iele~hrown (lOYR 8/3) clay loam, brown
<br />(lOYR 'u/3) when moist; weak, medium, sabangalar
<br />blocky structure: hard, friable; strongly caicamous;
<br />mildly alkaline; clear, smooth boundary.
<br />Clrn-11 to 31 Inches, pele~brown (lOYR 0/3) sandy clay
<br />loam, brown (lOYR 5/3) when mots[; Reek, coarse.
<br />suhnngular blocky rtrueture; hard, very friable:
<br />strongly calcerenus with few, medium find coe rse.
<br />white Ilme segregntlons; moderatelT alkaline; clear,
<br />smooth boundary.
<br />C2n~1 to GO inches, brown (lOYR 5/3) clay loam, brown
<br />(tOYR 4/3) when moist; massve; hard, 8rm;
<br />strongly mlmreous and contains mncretlons o[ cal-
<br />cium mrbonate; moderately alkaline.
<br />The A horizon rouges from 8 to 14 Inrbes in thic6-ness and
<br />from sandy clap Imm to clay loam in texture.
<br />In this survey area Flm soils rare mapped only in navocl•
<br />orlon with Nunn ills.
<br />Kutch Series
<br />The Kutch series is made tip of moderately deep, wel]-
<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 native cegetntion is mainly short and mid
<br />grasses. Annual precipitation is 12 to 18 inches. Dfesn
<br />annual air temperature is 48° to 52° F., and the frost-
<br />free Benson is about 140 to 155 days.
<br />In a representative profile the surface layer, about 7
<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 />i/
<br />Ex hf iR c~- r~2~..~
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