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5/97 <br /> 103 =Cryoborolls, Cryorthents soils, Rock Outcrop, 25 to 99 percent <br /> slopes <br /> Additional symbols : 46F, 99, 180 <br /> Setting <br /> Landform: mountain slopes <br /> Elevation:, 6, 500 to 10 , 000 feet <br /> Air temperature : 37 to 40 degrees <br /> Annual precipitation: 15 to 30 inches <br /> Frost-free period: 30 to 55 days <br /> Composition <br /> Cryoborolls soil and similar inclusions : 0 to 90 percent <br /> Cryorthents soil and similar inclusions : 0 to 75 percent <br /> Rock Outcrop: 0 to 75 percent <br /> Contrasting inclusions : 0 to 15 percent <br /> Contrasting Inclusions <br /> Foidel soils <br /> Routt soils <br /> Aaberg soils <br /> Waybe soils <br /> Somewhat poorly to very poorly drained Aquolls and Aquents soils <br /> Typical Profile <br /> Cryoborolls <br /> Surface layer: <br /> 0 to 3 inches=very dark grayish brown cobbly loam <br /> Subsurface layer: <br /> 3 to 14 inches=grayish brown cobbly loam <br /> Subsoil : <br /> 14 to 21 inches=light yellowish brown cobbly silt loam <br /> 21 to 29 inches=light yellowish brown very cobbly silty clay loam <br /> 29 to 33 inches=yellowish brown extremely cobbly silt loam <br /> Substratum: <br /> 33 to 45 inches=variegated light yellowish brown, light brownish gray, <br /> and grayish brown extremely cobbly loam <br /> Bedrock : <br /> 45 inches=hard sandstone <br /> Soil Properties and Qualities <br /> Cryoborolls <br /> Parent material : colluvium, alluvium, and residuum derived from <br /> sandstone or shale <br /> Position on landform: backslopes <br /> Depth class : shallow to very deep <br /> Drainage class : well drained <br />