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LARII~ COUNTY AREA, COLORADO
<br />(lOYR 6/4) very gravelly loamy sand,
<br />yellowish brown (lOYR b/4) moist;
<br />massive; slightly hard, very friable;
<br />nonsticky and nonplastic; 60 percent
<br />gravel; calcareous; mildly alkaline.
<br />ter A horizon is gravelly or very gravelly sandy
<br />r n kam 3 to 6 inches thick. The B2 hortzon is
<br />~rh or rery gravelly clay loam or sandy clay loam.
<br />'h ,e~bined thickness of the A and B horizons
<br />vya!~m 1? to IS inches. Content of rock fragments
<br />aT. n'om ranges from 26 to 60 percent but is more
<br />to is percent in the B horizon, Reaction ranges from
<br />sett to moderately alkaline.
<br />1~-larlm gnrelly sandy loam, 5 b 40 percent
<br />~. This strongly sloping to steep soil is on fans,
<br />tar7et, end terrace edges.
<br />~ysdrd Kith this soil in mapping are small areas
<br />fa~u that have a surface layer and subsoil of grav-
<br />b kem to gravelly loamy sand. Also included are
<br />tal tress of soils in which shale or sandstone is at
<br />~ roc`. of 10 to 20 inches.
<br />lynei u medium to rapid, and the hazard of ero-
<br />w ~ moderate to severe.
<br />'la soil is suited to pasture and native grasses.
<br />times attar of this soil are used as sites for gravel pits.
<br />;Aa4?~rr unit V1e11, dryland; Gravelly Foothill
<br />vps ate; windbreak suitability group 4.
<br />!1r Ltrimer series consists of deep, well drained
<br />eels •wit formed in material weathered from alluvium.
<br />1r ails are on high terraces and fans and are
<br />wie'~:n by sand and gravel at a depth of 20 to 40
<br />ans. Elevation ranges from 4,800 to 6,800 feet.
<br />bow are 1 to 10 percent. The native vegetation is
<br />a.mTT Aloe grams, western wheatgrass, needleand-
<br />*rs4 and cactus. Mean annual precipitation ranges
<br />!ar IS to 16 inches, moan annual air temperature
<br />asiaw from 48° to 60° F, and the frost-free season
<br />vets tram 135 to 160 days.
<br />'a s representative profile the surface layer is light
<br />trrniuh gray fine sandy loam about 4 inches thick.
<br />1e ~~teoil is brown and light brown loam about 18
<br />er+w thick. The underlying material is about 8 inches
<br />~ :v`: Bray grnvelly sandy loam that ie underlain by
<br />a: ,nd gravel.
<br />i4raxability is moderate above a depth of about 22
<br />k+w end rapid or very rapid below that depth. The
<br />n'ab:e water capacity is medium. Reaction is neu-
<br />t+lsSmY adepth of about 4 inches, mildly alkaline
<br />!cs«n depths of 4 and 18 inches, and moderately
<br />srL Te below a depth of 18 inches.
<br />:!ne soils are used mainly for irrigated and dry-
<br />crops and for pasture and native grasses.
<br />I.hrrentative profile of Latimer fine sandy loam,
<br />t 7r 3 percent slopes, in native grass, about 0.2 mile
<br />we ud 600 feet south of the northeast corner of sec.
<br />AI-0 to 4 inches; light brownish gray (lOYR
<br />6/2) fine sandy loam, dark grayish
<br />brown (lOYR 4/2) moist; strong very
<br />fine granular structure; soft, very fri-
<br />able; 6 percent gravel; neutral; clear
<br />smooth boundary.
<br />•
<br />Sb
<br />Bl-4 to 7 inches; brown (7.6YR b/3) light
<br />loam, brown or dark brown (7.6YR 4/3)
<br />moist; weak medium subangular blocky
<br />structure parting to moderate medium
<br />granular; slightly hard, very friable; 6
<br />percent gravel; mildly alkaline; clear
<br />smooth boundary.
<br />$2t-7 to 18 inches; brown (7.6YR 6/3) heavy
<br />loam, brown or dark brown (7.6YR 4/3)
<br />moist; maderate fine and medium pris-
<br />matic structure parting to moderate
<br />medium and fine subangular blocky;
<br />hard, very friable; thin nearly continu-
<br />ous clay films oa pads; 6 percent gravel;
<br />mildly alkaline; clear, wavy boundary.
<br />Baca-18 to 22 inches; light brown (7.6YR 6/4)
<br />loam, brown (7.6YR 6/4) moist; weak
<br />medium prismatic structure parting to
<br />weak medium subangular blocky; hard,
<br />very friable; few thin patchy clay films
<br />on the horizontal and vertical faces of
<br />a gregates; 6 percent gravel; some visi-
<br />ble calcium carbonate as concretions and
<br />as coatings on the grave! fragments;
<br />calcareous; moderately alkaline; grad-
<br />ual smooth boundary.
<br />Clca-22 to 30 inches; light gray (lOYR 7/2)
<br />gravelly sandy loam, pale brown (lOYR
<br />6/3) moist; massive; slightly hard, very
<br />friable; 20 percent gravel; vtstble sec-
<br />ondary calcium carbonate as concre-
<br />tions, in thin seams and streaks, ea
<br />coatings on the gravel fragments, aad in
<br />finely divided forms; moderately alka-
<br />line; diffuse wavy boundary.
<br />IIC2ca~90 to 60 inches; relatively clean gravel,
<br />cobbles, and sand, mainly oP quartzite,
<br />gneiss, and granite; approximately 80
<br />percent gravel and cobbles; small
<br />amount oP calcium carbonate as coatings
<br />on the gravel and sand in the upper part;
<br />moderately alkaline.
<br />The A horizon is loam, fine sandy loam, or sandy
<br />loam 3 to 11 inches thick. The B horizon is heavy
<br />loam or light clay loam. The A and B horizons range
<br />from neutral to moderately alkaline. Content of rock
<br />fragments ranges from 0 to 25 percent in the upper
<br />part of the profile and from 60 to 80 percent in the
<br />lower part.
<br />61-Larlmer fine sandy loam, 1 to 3 percent do
<br />This nearly level soil is on terraces, fans, and benches.
<br />This soil has the profile described as repreeentatlve o!
<br />the aeries.
<br />Included with this soil in mapping are a few small
<br />areas of Altvan, Fort Collins, and Stoneham soils. Also
<br />included are a few small areas of soils that are more
<br />sloping or less sloping and a few small areas of soils
<br />that have a surface layer of loam or sandy clay loam.
<br />The surface layer is about 11 inches thick because
<br />deep plowing has mixed the surface layer sad subsoil
<br />in irrigated areas.
<br />Runoff is slow. The hazard of water erosion is slight,
<br />and the hazard of wind erosion is moderate.
<br />If irrigated, this soil ie suited to barley, alfalfa,
<br />wheat, corn, and heana and, to a lesser extent, sugar
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