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Custer County Area, Colorado •
<br />C1ca~19 to 32 inches; light brownish gray (10YR 6/2)
<br />gravelly sandy loam, dark grayish brown (10YR 4/2)
<br />moist; massive; hard, very friable, slightly sticky and
<br />slightly plastic; 30 percent gravel; calcareous;
<br />moderately alkaline; gradual irregular boundary.
<br />IIC2ca-32 to 60 inches; white (N 8/) very gravelly
<br />sandy loam, very pale brown (10YR 7/3) moist;
<br />massive; hard, very triable, slightly sticky and slightly
<br />plastic; 30 percent gravel, 10 percent cobbles;
<br />calcareous; moderately alkaline.
<br />Very gravelly soil material is typically at a depth of 20
<br />to 40 inches. The 10- to 40-inch control section
<br />averages less than 35 percent rock fragments and is
<br />dominantly gravelly sandy loam. This part of the profile
<br />averages 10 to 18 percent clay. The mollic epipedon is
<br />16 to 28 inches thick and includes the 82 horizon. The
<br />hue of the profile is commonly 10YR but ranges to 2.5Y.
<br />The A horizon is grayish brown or dark grayish brown.
<br />Gelkie series
<br />The Gelkie series consis of deep, well drained soils
<br />on fans and terraces. The soils formed in alluvium.
<br />Slope is 1 to 10 per .The average annual
<br />precipitation is 15 20 inches, and the average annual
<br />air temperature is 4 to 44 degrees F.
<br />Typical pedon of Ge 'e sandy loam, 1 to 10 percent
<br />slopes, about 500 feet st and 1,200 feet north of the
<br />southeast corner of sec. 5, T. 24 S., R. 71 W.
<br />
<br />A11-0 to 6 inches; d
<br />dark brown (10Y
<br />granular structur ;
<br />nonplastic; 5 per e
<br />boundary.
<br />A12-6 to 13 inches; d
<br />loam, dark brown (10
<br />granular structure; so
<br />nonplastic; 5 percent
<br />boundary.
<br />B1-13 to 15 inches; brown
<br />loam, dark brown (7.5Y
<br />subangular blocky str c
<br />sticky and slightly pl stir
<br />abrupt wavy bound
<br />62t-15 to 28 inches; br r
<br />clay loam, dark brown '
<br />medium subangular bloc
<br />sticky and plastic; 15 pe
<br />cobbles; neutral, abrupt
<br />63tca-28 to 40 inches; bro
<br />sandy clay loam, dark b
<br />weak medium subang
<br />friable, slightly stick an
<br />gravel; 15 percent obb
<br />moderately alkaline, cle
<br />C1ca-40 to 45 inches; 'nk
<br />sandy loam, light bro
<br />brown (10YR 4/2) sandy loam,
<br />3/2) moist; moderate very fine
<br />soft, very friable, nonsticky and
<br />nt gravel; neutral; clear smooth
<br />brown (10YR 4/2) sandy
<br />R 3/3) moist; weak very fine
<br />ft, very triable, nonsticky and
<br />gr vet; neutral; clear smooth
<br />'.SYR 4/4) sandy clay
<br />3/2) moist; weak very fine
<br />re; hard, friable, slightly
<br />5 percent gravel; neutral;
<br />(7.SYR 5/4) cobbly sandy
<br />'.SYR 4/4) moist; moderate
<br />structure; hard, firm,
<br />r nt gravel, 15 percent
<br />irr ular boundary.
<br />vn 7.SYR 5/4) cobbly
<br />n (7.5YR 4/4) moist;
<br />it blocky structure; hard,
<br />i slightly plastic; 15 percent
<br />es; calcareous in spots;
<br />u irregular boundary.
<br />(7.5YR 7/4) very gravelly
<br />(7.SYR 6/4) moist; massive;
<br />•
<br />slightly hard, very fri
<br />plastic; 25 percent c
<br />calcareous; modera
<br />boundary.
<br />C2-45 to 60 inches; rc
<br />sandy loam, dark
<br />slightly hard, very fri
<br />plastic; 25 percent c
<br />moderately alkaline.
<br />Rock fragments range
<br />depth of 40 inches and f
<br />depth. Depth to calcareo
<br />30 inches. Hue of the ~
<br />The A horizon is br i
<br />brown, dark gray, or d F
<br />is brown, strong brown,
<br />grayish brown, yellowish
<br />cobbly sandy clay loam,
<br />sandy clay loam.
<br />Granite series
<br />61
<br />slightly sticky and slightly
<br />15 percent cobbles;
<br />kaline; clear irregular
<br />(7.SYR 5/4) very gravelly
<br />(7.5YR 4/4) moist; massive;
<br />slightly sticky and slightly
<br />(I, 15 percent cobbles;
<br />rom to 35 percent above a
<br />~m 0 to 50 percent below that
<br />material ranges from 20 to
<br />lile is 2.5Y, 10YR, or 7.SYR.
<br />dark brown, gray, grayish
<br />grayish brown. The B2t horizon
<br />ddish yellow, light brown,
<br />own, or pale brown. It is
<br />r elly sandy clay loam, or
<br />The Granite series consis of deep, well drained soils
<br />on mountainsides. These oils formed in colluvium from
<br />granite. Slope is 25 to percent. The average annual
<br />precipitation is 20 to 2 inches, and the average annual
<br />air temperature is 38 to 2 degrees F.
<br />Typical pedon of Gran cobbly sandy loam, from an
<br />area of Granite-Peeler co lex, 25 to 50 percent slopes,
<br />2,380 feel south and 1,700 et east of the northwest
<br />corner of sec. 21, T. 22 S., R. 70 W.
<br />01-3 to 2 inches; partially de mposed needles,
<br />leaves, and twigs.
<br />02-2 inches to 0; decomposed forest litter.
<br />Al-0 to 2 inches; brown (7.5Y 4/2) very cobbly sandy
<br />loam, dark brown (7.5YR /2) moist; weak very fine
<br />granular structure; so ,very friable, slightly sticky
<br />and slightly plastic; percent cobbles, 2 percent
<br />stones; neutral; clea wavy boundary.
<br />A2-2 to 16 inches; very le brown (tOYR 7/3) very
<br />cobbly sandy loam, br n (10YR 4/3) moist; weak
<br />tine granular structure; s htly hard, very friable,
<br />slightly sticky and slightly astic; 15 percent gravel,
<br />40 percent cobbles, 2 perc t stones; neutral; clear
<br />wavy boundary.
<br />B&A-16 to 19 inches; mixed
<br />very pale brown (10YR 7.
<br />loam, dark brown (7.SYR
<br />medium subangular blo
<br />Triable, slightly sticky a
<br />40 percent cobbles, 2 p
<br />wavy boundary.
<br />B2t-19 to 41 inches; brown
<br />sandy clay loam, dark brc
<br />moderate medium suban~
<br />firm, sticky and plastic; 11
<br />bro (7.5YR 5/4) and
<br />3) v ry cobbly sandy clay
<br />moist; moderate
<br />y structure; slightly hard,
<br />plastic; 15 percent gravel,
<br />cent stones; neutral; clear
<br />15/4) very cobbly
<br />.5YR 4/4) moist;
<br />Blocky structure; hard,
<br />ant gravel, 45
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