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<br />000029
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<br />silty clay, dark grayish brown (2.5Y 4/2) when
<br />moist; weak, medium and finel subanguJar
<br />blocky structure; hard, firm; sticky and plastic;
<br />calcareous; moderately alkaline; abrupt, smooth
<br />bound"'Y.
<br />
<br />CI-I8 to 35 inches, light brownish-gray (2.5Y 612)
<br />silty clay, dark grayish brown (2.5Y 4/2) when
<br />moist; weak, fine and very fine. subangular
<br />blocky structure; hard, firm; sticky and plastic;
<br />calcareous; fine filaments and threads;
<br />crystalline gypsum; moderately alkaline;
<br />gradual, smooth boundary.
<br />
<br />C2-35 to 60 inches, light brownish-gray (2.5Y 6/2)
<br />silty clay loam, dark grayish brown (2.5Y 4/2)
<br />when moist; massive; slightly hard, friable;
<br />sticky and plastic; strongly calcareous;
<br />moderately alkaline.
<br />
<br />These soils range from moderately alkaline to
<br />strongly alkaline. They range from clay to silty clay
<br />loam. The AC anc C horizons have weak blocky and
<br />weak platy structure or are massive.
<br />
<br />LnA-Limoo silty clay loam, 0 to 2 percent slopes.
<br />This soil is on alluvial fans and terraces in the north-
<br />central and southeastern parts of the survey area.
<br />The areas cover as much as [,000 acres. This soil
<br />has the profile described as representative of the
<br />series.
<br />
<br />Included with this soil in mapping are areas of Razor
<br />soils that make up about 5 percent of the acreage.
<br />
<br />Runoff is medium. The hazard of erosion is
<br />generally moderate, but it is severe in places. Deep
<br />gullying and soil piping are hazards where the range
<br />is overgrazed.
<br />
<br />The soil generally is not subject to flooding, but
<br />long, narrow, nearly level areas along Dry Creek,
<br />Haynes Creek, and Kramer Creek and similar areas
<br />are subject to frequent, brief flooding.
<br />
<br />This soil is difficult to till because it is cloddy when
<br />dry and sticky and plastic when wet. The native
<br />grasses are mainly galleta, blue grama, and alkali
<br />sacaton. Capability units He-I, irrigated, and YIe-2,
<br />nonirrigated; Salt Flats range site.
<br />
<br />LoB-Limon silty clay loam, 2 to 5 percent slopes.
<br />This soil is in long, narrow areas between the
<br />Arkansas River and Fountain Creek. The areas cover
<br />as much as 300 acres. This soil has a profile similar
<br />to the one described as representative of the series.
<br />
<br />Included with this soil in mapping are areas of Razor
<br />soils that make up about 20 percent of the acreage.
<br />
<br />Runoff is rapid, and the hazard of erosion is high.
<br />The native grasses are mainly alkali sacaton, blue
<br />grama, and galleta. Capability units 1IIe-2, irrigated,
<br />and Vle-2, nonirrigated; Salt Flats range site.
<br />
<br />LoA-Limon silty clay, 0 to 2 percent slopes. This
<br />soil is on alluvial fans and terraces in the north-
<br />central and southwestern parts of the survey area.
<br />The areas cover as much as 800 acres. This soil has
<br />a profile similar to the one described as
<br />representative of the series, but the surfuce layer is
<br />silty clay and the underlying material is strongly
<br />alkaline. About 15 percent of the surfitce area is
<br />covered by barren slickspots.
<br />
<br />Included with this soil in mapping are areas of
<br />Apishapa and Haverson soils that make up about 10
<br />percent each of the acreage.
<br />
<br />Runoff is slow, and the hazard of erosion is
<br />moderate.
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<br />This soil is difficult to till because it is sticky and
<br />plastic when wet. The native vegetation is mainly
<br />alkali sacaton, blue grama, galleta, and greasewood.
<br />Capability units Ills-I, irrigated, and YIe-2, nonirri-
<br />gated; Salt Flats range site.
<br />
<br />LvB-Limon silty clay, 0 to 5 percent slopes,
<br />gullied. This soil is in the central part of the survey
<br />area. The areas are irregularly shaped and cover as
<br />much as 600 acres. This soil has a profile similar to
<br />the one described as representative of the series, but
<br />the surfuce layer is silty clay and the areas are
<br />dissected by gullies that are 2 to 10 feet deep.
<br />
<br />Included with this soil in mapping are areas of
<br />Midway soils and Shale outcrop that make up about
<br />15 percent of the acreage.
<br />
<br />Runoff is rapid, and the hazard of erosion is high.
<br />
<br />Range seeding is difficult because of the deep
<br />gullies. Capability unit VIle-I, nonirrigated; not in
<br />a range site.
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<br />3
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