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RECEIVED ~G 2 9 1997 U.S. Department of Agriculture Soil Conservation Service Page - 9 6J2S 95 Division of Minerals & Geology J NONTECHNICAL SOILS DESCRIPTION REPORT FOR DESCRIPTION CATEGORY - SOZ Survey Area- FREMONT COUNTY AREA, COIARADO Map Symbol Description 121 USTIC TORRIORTHENTS-SEDILIA COMPLEX, 15 TO 40 PERCENT STAPES This map unit is on terrace edges and hills. It is about 70 percent Ustic Torriorthents and about 20 percent Sedillo soil. The Ustic Torriorthents are on middle and lower side slopes, and the Sedillo soil is on the crest and upper side slopes of terrace edges. Ustic Torriorthents are shallow to deep and are well drained. They formed in residuum and cllluvium derived dominantly from thinly bedded sandstone, siltstone, and shale. Typically, the surface layer is very gravelly loam 2 inches thick. The upper 25 inches of the substratum is gravelly clay loam. The lower part to a depth of 42 inches is gravelly loam. Weathered sandstone is at a depth of 42 inches. Permeability is moderate to slow. Available water capacity is low or very low. Effective rooting depth is 15 to 60 inches. Runoff is rapid to very rapid, and the hazard of erosion of unprotected soil by water is high to very high. ~ ~ ,, y,la~~,5 Al:~ "• , ~ The Sedillo soil is deep and well drained. It formed ~~,~ y` in gravelly and cobbly alluvium and landslide deposit~PG~t~~~ r'% Typically, the surface layer is extremely cobbly loa ~ 4 inches thick. The upper part of the subsoil is ~t~,oa;:. J H extremely cobbly sandy clay loam 6 inches thick. The ~~e~fPJ" ya next 25 inches of the substratum is extremely stony ~~a~„p ~ L loam. The lower part to a depth of 60 or more inches ~ is loam. Permeability is moderate. Available water ~~c~Or'j capacity is low. Effective rooting depth is 60 inches CD ~ ~y or more. Runoff is rapid to very rapid, and the hazard ~ ~IJI- of erosion of unprotected soil by water is high to very 1 high. .-~ 122 WAGES LOAM, 2 TO 9 PERCENT STAPES The Wages soil is deep and well drained. It formed in alluvium and eolian material. Typically, the surface layer is loam 5 inches thick. The subsoil is clay loam 16 inches thick. The substratum to a depth of 60 inches or more is sandy clay loam. Permeability is moderate. - Available water capacity is high. Effective rooting depth is 60 inches or more. Runoff is slow to medium, and the hazard of erosion of unprotected soil by water = is slight to high. 126 WETMORB-BUNDO, DRY-ROCK OUTCROP COMPLEX, 35 TO 75