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<br />16
<br />SOIL SURVEY
<br />than 60 inches. They are used for grazing, hay, and
<br />irrigated crops.
<br />Representative profile oP Glenberg fine sandy loam,
<br />in an area of Glenberg-Haverson fine sandy laams, in
<br />native grass, 1,200 feet north and 800 feet east of the
<br />center of sec. 12, T. 19 S., R. 60 W.
<br />All to 5 inehea, light brownish-grey (lOYR 6/2) fins
<br />ssndy loam, dark grayish brown (lOYR 4/2) when
<br />moist; weak, thin, platy structure; slightly hard, very
<br />friable; nonsticky and nonplastie; calcareous; moder-
<br />ately alkaline: abrupt, smooth boundary.
<br />C~ to 60 inches, pale-brown (IOYR 8/3) floe sandy loam
<br />stratified with layers, less than 4 inches thick, of loamy
<br />fine sand and silt loam, brown (lOYR 5/3) when moist•
<br />massive; slightly hard, very friable; aonstieky and
<br />nonelastic; calcareous; moderately alkaline.
<br />In places there are a few, fine, distinct, strong-brown
<br />(7.SYR 5/8, moist) monies below a depth of 21 inches. The
<br />Al horizon is fine sandy loam to loamy fine sand 4 to 12
<br />inches thick. The C horizon is mainly fine sandy loam thinly
<br />stratified with loamy fine sand and loam.
<br />Gh-Glenberg-Haverson fine sandy loamy. This com-
<br />plex is on ]ow terraces along the rivers and creeks. It
<br />is made up of about 60 percent Glenberg fine sandy
<br />loam and 30 percent Haverson fine sandy loam. The
<br />slope is 0 to 2 percent. Areas of this complex are
<br />elongated and cover as much as 300 acres. The Glenberg
<br />soil is near the stream, and the Haverson soil is away
<br />from the stream.
<br />The Glenberg soil in this complex has the profile de-
<br />scribed as representative of the Glenberg series. The
<br />Haverson soil has a profile similar to the one described
<br />as representative of the Haverson series, but the sur-
<br />face layer is fine sandy loam and the soil is redder.
<br />Included with these soils in mapping aze areas of
<br />Las Animas soils that make up about 10 percent of the
<br />acreage.
<br />Runoff is slow, and the hazard of soil blowing is mod-
<br />erate. These soils are subject to occasional, brief
<br />flooding.
<br />These soils have potential for nonirtigated pasture.
<br />They are easily tilled. The native vegetation is western
<br />wheatgrass, inland saltgrass, cottonwood, and tama-
<br />risk. Capability units IIe-1, irrigated, and VIe-1, non-
<br />irrigated; Sandy Bottomland range site.
<br />$averson Series
<br />The Haverson series consists of deep, well-drained
<br />soils. These soils formed on Hood plains in loamy allu-
<br />vium. The slope is 0 to 2 percent, and elevation is
<br />4,300 to 4,800 feet. The average annual precipitation
<br />is 12 inches. The average annual temperature is 53° F,
<br />and the frost-free season is 145 to 175 days. The
<br />native vegetation is mainly plains grasses.
<br />In a representative profile the surface layer is light
<br />brownish-gray silt loam about 6 inches thick. The
<br />underlying material in the upper 9 inches is light
<br />brownish-gray silt loam. Below that it is pale-brown
<br />stratified silt loam, loam, and fine sandy loam that
<br />extends to a depth of 60 inches or more.
<br />Permeability is moderate, and the available water
<br />Capacity is high. These soils are moderately alkaline.
<br />Their root zone extends to a depth of more than 60
<br />inches. They are used for grazing, hay, and irrigated
<br />crops.
<br />Representative profile of Haverson silt ]oam, in
<br />native grass, 0.35 mile north and 0.06 mile east of the
<br />southwest corner of sec. 4, T. 26 S., R. 60 W.
<br />A~ to 8 inches, Rght brownish-gray (l0Y$ 8/2) silt loam,
<br />dark grayish brown (lOYR 4/2) when moist; weak, thin,
<br />platy structure parting to week, 9n0. ggrraanular; soft,
<br />friable; nonaticlq sad slightly plastic; calcareom; mod-
<br />erately alkaline; abrupt, smooth boundary.
<br />CIS to 15 inehea, light brownish-gray (lOYR 8/2) silt
<br />loam, dark grayish brown (IOYR 4/2) when moist;
<br />weak medium, mbangalar blocky strocture• slightly
<br />hard, friable; nossticky sod slightly plastic; calcueoue;
<br />moderately alkaline; clear, smooth boundary.
<br />03-16 to 60 iache0. pale-brown (10Y8 8/3) stratified silt
<br />loam, loam, and tine sandy loam, brown (lOYR d/3)
<br />when moist; massive; hard, friable; nonatieky and
<br />slightly plastic; ealeareove; moderately alkaline.
<br />The A horizon is loam, silt loam, silty clay loam, or floe
<br />ssndy loam 3 to 12 inches thick. The C horizon ie stratified
<br />silt loam, loam, fine sandy loam, and silty clay loam.
<br />Ha-Haverson silt loam. This soil is on low terraces
<br />or bottoms of intermittent drainageways in the eastern
<br />part of the survey area. 'Pile azeas aze elongated and
<br />cover as much as 200 acres.
<br />Included with this soil in mapping are small areas of
<br />Glenberg and Bankard soils.
<br />Runoff is slow, and the hazard of erosion is slight.
<br />The soil is subject to frequent, very brief flooding.
<br />This soil has potential for nonirrigated pasture. The
<br />native vegetation is mainly western wheatgrass, blue
<br />grams, alkali sacaton, and fourwing saltbush. Capa-
<br />bility units Hw-1, irrigated, VIw-2, nonirrigated;
<br />Saline Overflow range site.
<br />eldt Series
<br />e Heldt series consists of deep, well-drained so' .
<br />Thes soils formed on alluvial fans in clayey alluv' m.
<br />The sl a is 2 to 6 percent, and elevation is 4, 0 to
<br />5,600 f t. The average annual precipitatio is 12
<br />inches. Th average annual temperature is ° F, and
<br />the frost-fr season is 145 to 175 days./The native
<br />vegetation is ainly short plains grasse
<br />In a represen tive profile the surface layer is light
<br />brownish-grays y clay loam aboutr'3 inches thick.
<br />The subsoil is lig yellowish-brown silty clay about
<br />11 inches thick.The u derlying maferial is light yellow-
<br />ish-brown silty clay a cat 9 inches thick over pa[e-
<br />yellow silty clay that a nds-to a depth of 60 inches
<br />or more.
<br />Permeability is slow, and a available water capac-
<br />ity is high. These soils ale m erately alkaline. Their
<br />root zone extends to a depth of inches or more. They
<br />are used for grazing:
<br />Representative,pcofile of Heldt sr clay loam, 2 to
<br />6 percent slopes; in native grass, 0.3 'le east of the
<br />west quarter comer of sec. 14, T. 20 S., .fib W.
<br />Al-0 to 3'inehes, light brownish-goy (2SY 2) silty clay
<br />loam; dark grayish brown (2bY 4/2) when ist; week,
<br />thin, Platy structure parting to moderate, cry fine,
<br />nulaz; slightly hard, firm; sticky and plan 'e; eal-
<br />eareoua; moderately alkaline; abrupt, smooth bou
<br />to 14 inehea, light yellowish-brown (2.5Y 6/4) ' ty
<br />clay, olive brown (25Y 4/d) when moist; modern
<br />medium, prismatic ettoetnra parting is moderate, madly
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