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PUEBLO AREA, COLORADO •
<br />~'ha
<br />The water table is at a depth of 1.5 to 3 feet. The sur-
<br />face layer is low to high in content of salts.
<br />The native vegetation is inland saltgrass, alkali
<br />sacaton, tamarisk, and willow. Capability units IlIw-2,
<br />irrigated, and VIu•-1, nonirrigated; Salt Meadow
<br />range site.
<br />~3mon Series
<br />4'hc Limon series consists of deep, well-drained soils.
<br />These soils formed on alluvial fans and terraces in
<br />clayey alluvium. The slope is 0 to 5 percent, and eleva-
<br />tion i~: 9,300 to 5,100 feet. The average annual precipi-
<br />tation is 12 inches. The average annual temperature is
<br />53°F, and the frost-free season is 195 to 175 days. The
<br />native vegetation is mainly plains grasses.
<br />In a representative profile the surface layer is gray-
<br />isb-brown silty cla}• loam about 4 inches thick. The sub-
<br />'burface layer is light brownish-gray silty clay about
<br />19 inches thick. The underlying material is light
<br />brownish-gray silty clay about 17 inches thick over
<br />light brownish-gray silty clay loam that extends to a
<br />depth of 60 inches or more.
<br />Permeability is slow, and the available water ca-
<br />pacity is high. The surface and subsurface layers are
<br />moderate]}- alkaline and the underlying material is
<br />raoderatel}• alkaline or strongly alkaline. The root zone
<br />extends to a depth of more than 60 inches. These soils
<br />are used for grazing and irrigated crops.
<br />Representative profile of Limon silty clay loam, 0 to
<br />2 percent slopes, in grass, 2.5 miles west and 0.2 mile
<br />north of the southeast corner of sec. 36, T. 25 S., R.
<br />60 W.
<br />A-0 [0 4 inches, gra}•ish-brown {2.SYR 6/2) silty clay loam,
<br />dark grayish brown (lOYR 4/2) when moist; weak,
<br />fine and very fine, granular structure; slightly hard,
<br />firm; sticky and plastic; calcareous; moderately alka-
<br />line; abrupt, smooth boundary.
<br />AC-4 to 18 inches, light brownish-gray (2.SY 6/2) silty
<br />clay, dark grayish brown (2.61' 4/2) when moist; week,
<br />medium and fine, subangular blocky structure; hard,
<br />firm; sticky end plastic; calcareous; moderately alka-
<br />line; abrupt, smooth boundary.
<br />C1-18 to 36 inches, light brownish-gray (2.6Y 6/2) silty
<br />clay, dark grayish brown (2.6Y 4/2) when moist; weak,
<br />fine and very fine, aubangular blocky structure; hard
<br />firm; sticky and plastic; calcareous; fine filaments an~
<br />threads; crystalline gypsum; moderately alkaline;
<br />gradual, smooth boundary.
<br />C2-35 to 60 inches, light brownish-grey (2.6Y 6/2) silty
<br />clay loam, dark grayish brown (2.6Y 4/2) when moist;
<br />massive; slightly hard, friable; sticky and plastic;
<br />strongly calcareous; moderately alkaline.
<br />These soils range from moderately alkaline to strongly
<br />alkaline. They range from clay to silty slay loam. The AC
<br />and C horizons have weak blocky and weak platy structure
<br />or are massive.
<br />LnA-Limon silty clay loam, 0 to 2 percent slopes.
<br />This soil is on alluvial fans and terraces in the north-
<br />centra] and southeastern parts of the survey area. The
<br />areas cover as much as 1,000 acres. This soil has the
<br />profile described as representative of the series.
<br />Included with this soil in mapping are areas of Razor
<br />soils that make up about 5 percent of the acreage.
<br />Runoff is medium. The hazard of erosion is generally
<br />moderate, but it is severe in places. Deep gullying and
<br />soil piping are hazards where the range is overgrazed.
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<br />The soil generally is not subject to flooding, but long,
<br />narrow, nearly level areas along Dry Creek, Haynes
<br />Creek, and Kramer Creek and similar areas are subject
<br />to frequent, brief flooding.
<br />This soil is difficult to till because it ie cloddy when
<br />dry and sticky and plastic when wet. The native grasses
<br />are mainly galleta, blue grams, and alkali sacaton. Capa-
<br />bility units IIe-1, irrigated, and VIe-2, nonirrigated;
<br />Salt Flats range site.
<br />Ln)?^Limon silly clay loam, 2 to 5 percent slopes.
<br />This soil is in long, narrow areas between the Arkansas
<br />River and Fountain Creek. The areas cover as much
<br />as 300 acres. This soil has a profile similar to the one
<br />described as representative of the series.
<br />Included with this soil in mapping are areas of Razor
<br />soils that make up about 20 percent of the acreage.
<br />Runoff is rapid, and the hazard of erosion is high.
<br />The native grasses are mainly alkali sacaton, blue
<br />grams, and galleta. Capability units IIIe-2, irrigated,
<br />and VIe-2, nonirrigated; Salt Flats range site.
<br />LoA-Limon silty clay, 0 to 2 percent elopes. This
<br />soil is on alluvial fans and terraces in the north-central
<br />and southwestern parts of the survey area, The areas
<br />cover as much as 800 acres. This soil has a profile
<br />similar to the one described as representative of the
<br />series, but the surface layer is silty clay and the under-
<br />lying material is strongly alkaline. About 15 percent
<br />of the surface area is covered by barren slickspots.
<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 />Runoff is slow, and the hazard of erosion is moderate.
<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 grams, galleta, and greasewood.
<br />Capability units IIIs-1, irrigated, and VIe-2, nonirri-
<br />gated; Salt Flats range site.
<br />Lvl~-Limon silty clay, 0 l0 5 percent slopes, Bullied.
<br />This soil is in the central part of the survey area. The
<br />areas are irregularly shaped and cover as much as 600
<br />acres. This soil has a profile similar to the one described
<br />as representative of the series, but the surface layer is
<br />silty clay and the areas are dissected by gullies that
<br />are 2 to 10 feet deep.
<br />Included with this soil in mapping are areas of Mid-
<br />way soils and Shale outcrop that make up about lb
<br />percent of the acreage.
<br />Runoff is rapid, and the hazard of erosion ie high.
<br />Range seeding is difficult because of the deep gullies.
<br />Capability unit VIIe-1, nonirrigated; not in a range
<br />site.
<br />Manuel Series
<br />The Manuel series consists of deep, well-drained soils.
<br />These soils formed on alluvial fans in silty colluvial and
<br />alluvial material that weathered mainly from limestone.
<br />The elope is 0 to 6 percent, and elevation is 4,400 to
<br />5,800 feet. The average annual precipitation is 12
<br />inches. The average annual temperature is 53° F, and
<br />the frost-free season is 146 to 176 days. The native
<br />vegetation is mainly plairu grasses.
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