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The shunt Home series consists of very cobbly,
<br />moderately coarse textured, aotttewhat excessively
<br />drained, sloping soils that formed fn aliwia] mate-
<br />rial on the fives at the toot of the Sangre de Cristo
<br />Mountain Range. These soils are droughty but are in
<br />an area that t•eceivea amore rainfall than other parts
<br />of the survey aren-
<br />in a representative profile, the surface layer is
<br />very dark grayish-brain very cobbly sandy loam end
<br />very cobbly fine sandy loam about 17 inches thick.
<br />It is moderately alkaline and is about 6S pcrcenC
<br />cobblestones, stones, and gravel. The upper 5
<br />inches is noncalcattoua, and the lower part is
<br />slightly calcareous. Tice substratum, to a depth of
<br />GO inches, is brown very cobbly sandy loam that is
<br />highly calcareous, is moderately alkallna, end is
<br />about RS percent cobblestones, stones, and gravel.
<br />~Ihe amount of liar decreases in the lower part of
<br />the substratum.
<br />Fiount home soils have moderately rapid permeabil-
<br />ity. Some streams that originate in the mountains
<br />disappear into this very cobbly soil. The available
<br />water holding capacity is very low.
<br />Mount home soils are used for range that provides
<br />grazing for livestock and food for wildlife. In the
<br />Alamosa~Area, tl+e se soils wen mapped only in a com-
<br />plex with the Sngauche soils.
<br />Rcp rescntative profile of Mount Nome very cobbly
<br />sandy loam, in an Brea of Mount Hooe-Sagaurhe cobbly
<br />sandy loans, a to 12 percent slopes, 1,500 feet east
<br />and 1,200 feet south of the northwest corner of sec.
<br />S1, T. I8 5., R. 73 N.;
<br />Ali--O to 5 inches, light brownish-pray (lOYR 6/2)
<br />very cobbly sandy to ue, very dark grayish
<br />brown i101'li 3/2) when moist; weak, fine, gran- ;
<br />ular structure; soft when dry, very friable
<br />when moist; noncaltareous; pl1 8.0; approximate- .
<br />ty GS percent cobblestones, stones, end gravel;
<br />clear, smooth boundary.
<br />al?--5 to 17 inches, light brownish-gray (]OYR 6/?)
<br />eery cobbly fine sandy loam, very dark grayish
<br />brown (IOYR 3/2) when moist; weak, fine, gran-
<br />ular stru cturc; soft when dry, very fri chic
<br />Shen moist; slightly calcareous; pH 8.0;
<br />approximately 65 percent cobblestones, stones,
<br />end gravel; clear, smooth boundary.
<br />('1: a~-17 to 37 inches, very pale brown (lOYR 7/3)
<br />very cobbly sandy loam, brown (]OYR 5/3) when
<br />uroist; massive; soft when dry, very friable
<br />when moist; highly calcareous, wi [h visible
<br />disseminat eJ lime and lime coatings on lo~•er
<br />side of cobblestones; pll 8.2; approximately BS
<br />percent cobblestones, stones, and gravel;
<br />gradual, smooth boundary.
<br />t:'ca--37 to 60 inches, pale-brain (IOYR 6/3) very
<br />cobbly sand}• loam, brown (lOYR 5/3) when
<br />moist; massive; soft when dry, very friable
<br />when rmist; highly calcareous in upper part,
<br />with lime decreasing with depth; pH 8.?;
<br />app ro x+merely 85 percent cobblestones, stones,
<br />and gravel,
<br />The Hain variations Sn this soil arc in the
<br />anu unt of cobblestones, stones, and gravel, which
<br />ca}• range from 50 to 90 percent throughout the prn-
<br />filc. Tlic amount of cobblestones and stones normal-
<br />ly increases wi tit depth. The Texture ranges from
<br />ran' cobbly fine son iy loam to very cobbly loamy
<br />fine sand. Reaction of the A horizon ranges from pll
<br />t7;UCS Of 7,4 CO ft,4, The C hori inn rnno~a (rn,n ..II
<br />ueche Series
<br />The Saguache series consists of mainly ar.+det a:el+•
<br />coarse textured soils that arc underlain by gravel
<br />and sand at a depth of 8 to 15 inches. These soils
<br />formed~in alluvium on fans and Clood plains. Tl,cy
<br />are excessively drained and arc very drought}•.
<br />In a representative profile, the surface layer is
<br />very dark grayish-brown sandy loam and fine sandy
<br />loam that is noncalca ttous and strongly atk aline.
<br />This is vnderlain by gravel end sand at a depth of
<br />about 10 inches. In many places the surface la}•er
<br />is gravelly or cobbly.
<br />Saguache soils absorb water rapidly and hsve ve n•
<br />rapid petmeability. Some streaau that originate in
<br />the mountains disappear into these soils. The avail-
<br />able water holding capacity is very low.
<br />The Saguache soils are used for range that pro-
<br />vides grazing for livestock and food for wildlife.
<br />In the Al at4osa Area, these soils occur only in a com-
<br />plex with the Fbunt Home soils. For a description of
<br />that complex, see the Mount home series.
<br />Represencative profile of Saguache sandy loam, to
<br />an area of Hount Home-Saguache cobbly sandy loans,
<br />4 to 12 percent slopes, 1,800 feet north and O.S
<br />mile east of the southwest corner of sec, 7, T. 2A
<br />5., R, 73 M,:
<br />All--O to 4 inches, grayish-brown (lOYR 5/I) sand
<br />loo, vary dark grayish Dram (lOYR 3/2) wh
<br />moist; vaak, thin, platy structure parting
<br />weak, fine, granular; slightly hard when dr
<br />friable when moist; noncalcattotu; pll !1.0;
<br />clear, smooch boundary.
<br />A12--4 to 10 inches, grayish-brown (lOYR 5/2) fin
<br />sandy loam, very dark grayish brawn (l0Y'P. 3
<br />when moist; weak, mdi w, subangular block }•
<br />structure parting to week, floe, granular;
<br />slightly hard when dry, friable when moist;
<br />noncalcereous; pH 8.5; clear, smooth Ito undo
<br />IIC--10 [0 60 inches, cobblestones, gravel, and
<br />sand; noncelcareous; pH 8.5.
<br />The texture of the A horizon ranges from sand.
<br />loam to loam, and the horizon is S to 25 percent
<br />cobblestones. Depth to cobblestones, gravel, and
<br />sand ranges from 8 to 15 inches.
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