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20
<br />SOIL SURVEY
<br />line. Roots can penetrate to a depth of more than 60
<br />inches.
<br />These soils are used for grazing, as wildlife habitat,
<br />and for watershed.
<br />Representative profile of Utaline stony loam, 3 to 25
<br />percent slopes, 500 feet south of the Delta-Mesa County
<br />line, SE1/4NWl/I sec. 13, T. 4 S., R. 3 E., in an area of
<br />grass.
<br />A1-0 to 4 inches, pink (7.5YR 7/4) stony loam, brown
<br />(7.5YR 5/4) when moist; moderate, medium,
<br />granular structure, but weak platy structure in
<br />upper 2 inches; 30 percent basalt stones and
<br />cobbles; slightly calcareous; moderately alkaline;
<br />clear, smooth boundary.
<br />ACca-4 to 9 inches, pink (7.5YR 7/4) very cobbly loam,
<br />brown (7.5YR 5/4) when moist; weak, medium,
<br />subangular blocky structure; slightly hard, very
<br />friable; 50 percent basalt cobbles; some soft ac-
<br />cumulation of calcium carbonate; moderately alka-
<br />line; gradual, wavy boundary.
<br />Clca-9 to 18 inches, pink (7.5YR 8/4) very cobbly loam,
<br />lijWht brown (7.5YR 6/4) when moist; massive;
<br />slightly hard, friable; 50 percent basalt cobbles;
<br />calcareous; moderately alkaline; gradual, wavy
<br />boundary.
<br />C2ca-18 to 40 inches, pinkish-white (7.5YR 8/2) very
<br />cobbly loam, pink (7.5YR 7/4) when moist; mas-
<br />sive; slightly hard, friable; 75 percent basalt
<br />cobbles- much secondary calcium carbonate in
<br />finely divided form; moderately alkaline; diffuse,
<br />wavy boundary.
<br />C3ca-40 to 60 inches, pinkish-gray (7.5YR 7/2) very
<br />cobbly loam, light brown (7.5YR 6/4) when moist;
<br />massive; slightly hard, friable; 80 percent basalt
<br />cobbles; much accumulated calcium carbonate but
<br />less than in C2ca horizon; moderately alkaline.
<br />Fragments of basalt make up 35 to 85 percent, by volume,
<br />the soil. The fine material is loam or clay loam.
<br />jU0 Utaline stony loam, 3 to 25 percent slopes.
<br />T oil is gently sloping to. steep and is on mesas and
<br />high terraces. It has the profile described as represen-
<br />tative of the series.
<br />Included with this soil in mapping are small areas
<br />of Ildefonso soils and of soils that are about 40 inches
<br />deep to shale.
<br />Runoff is, moderate, to rapid. The hazard of water
<br />erosion is moderate or. high.
<br />This soil is used mainly for grazing and as wildlife
<br />habitat. .Capability unit VIIe-1; Stony Salt Desert
<br />range, site.
<br />Us . Utaline-Shale outcrop complex. This complex is
<br />rolling to steep and is on mesa and terrace edges and
<br />breaks: It consists of about 65 percent Utaline stony
<br />loam and about 35 percent Shale outcrop. The Utaline
<br />soil has the profile described as representative of the
<br />series.
<br />Included with this complex in mapping are a few
<br />small areas of Persayo soils.
<br />Runoff is rapid. The hazard of water erosion is high.
<br />This soil is used mainly for grazing and as wildlife
<br />habitat. Utaline soil is in capability unit VIIe-1 and in
<br />Stbny Salt Desert range site; Shale outcrop was not
<br />placed in a capability group or in a range site.
<br />Wet Alluvial Land
<br />We-Wet alluvial land. This mapping unit consists
<br />of deep alluvium on stream bottoms, flood plains, and
<br />swales. This alluvium is highly stratinea and is mainly
<br />sandy loam or fine sandy loam. The water table is higl
<br />for at least part of the year. Vegetation is mostly
<br />rushes, sedges, and glasses. The growing season ranges
<br />from 50 to 75 days. Capability unit Vw-1; Mountain
<br />Meadow range site.
<br />Witt Series
<br />The Vitt series consists of deep, well-drained soils.
<br />These soils formed in eolian deposits on upland hills
<br />and ridges. The slope is 3 to 12 percent, and elevation
<br />is 6,500 to 7,500 feet. The natural vegetation is mainly
<br />sagebrush, rabbitbrush, wheatgrass, and bluegrass.
<br />The average annual precipitation is 15 inches. The
<br />mean annual temperature is 500 F., and the frost-free
<br />season is 100 to, 125 days.
<br />In a representative profile the surface layer is
<br />reddish-blown fine sandy loam about 3 inches thick.
<br />The upper part of the subsoil is also reddish-brown
<br />fine sandy loam about 3 inches thick. The lower part
<br />of the subsoil is reddish-brown or reddish-yellow clay
<br />loam and pink silty clay loam about 41 inches thick.
<br />The substratum is pinkish-white loam that extends to
<br />bedrock, which is at a depth of about 58 inches.
<br />Witt soils have moderate permeability and a high
<br />available water capacity. They are neutral to a depth
<br />of about 17 inches and moderately alkaline below that.
<br />Roots can penetrate to a depth of 50 to 60 inches.
<br />These soils are used for grazing, as wildlife habitat,
<br />and as watershed areas.
<br />Representative profile of Witt fine sandy loam, in an
<br />rea of Gibbler-Witt association, undulating, SW1/1
<br />ec. 7, T. 49 N., R.. 17 W., in an area of grass.
<br />A1-0 to 3 inches, reddish-brown (5YR 5/4) fine sandy
<br />loam, reddish brown (5YR 4/4) when moist;
<br />weak, medium, platy parting to weak, fine, granu-
<br />lar structure; sbounar.
<br />lightly hard, very friable; neutral;
<br />BI-3 to 16sinches, reddi habrown (5YR 5/4) heavy fine
<br />sandy loam, reddish brown (5YR 4/4) when
<br />moist; weak, medium, subangular blocky struc-
<br />ture; slightly hard, very friable; neutral; clear,
<br />smooth boundary.
<br />B21t-6 to 17 inches, reddish-brown (5YR 5/4) clay loam,
<br />reddish brown (5YR 4/4) when moist; moderate,
<br />medium, prismatic parting to moderate, medium,
<br />subangula,r blocky structure; hard, friable; mod-
<br />erate continuous films of clay on peds; neutral;
<br />B22t-17 ctoa23 inches, reddish-yellow (5YR 616) clay loam,
<br />yellowish red (5YR 516) when moist; moderate,
<br />medium, prismatic parting to moderate, medium,
<br />subangular blocky structure; hard, firm; moder-
<br />ca
<br />re unearly, s; moderately u alkaline; cleat wavy bound-
<br />ar.
<br />IIB2tca 23 to 47 inches, pink (5YR 8/3) silty clay loam,
<br />light reddish brown (5YR 614) when moist; mod-
<br />erate, medium, prismatic parting to moderate,
<br />medium, subangular blocky structure; hard, firm;
<br />al caerate, continuous films clear, o smooth
<br />IICca-47 oto boundary. inches
<br />pinkish-white (5YR 7/3j nmoit; ma sivRe; Svery hard,
<br />firm; calcareous; moderately alkaline; abrupt,
<br />boundary. inches, sandstone and shales
<br />The A horizon is fine sandy loam or loam. The 132t. hori-
<br />zon is clay loam or clay. `Vitt soils are mapped only in the
<br />Gibbler-Witt association, undulating.
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