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3/97 <br />SSF =Inchau-Jerry complex, 25 to 65 percent slopes, extremely stony <br />Setting <br />Position on landscape: mountain slopes <br />Elevation: 6,600 to 7,600 feet <br />Air temperature: 38 to 40 degrees F <br />Annual precipitation: 18 to 26 inches <br />Frost-free period: 35 to 55 days <br />Composition <br />Inchau soil and similar inclusions: 55 percent <br />Jerry soil and similar inclusions: 35 percent <br />Contrasting inclusions: 10 percent <br />Contrasting Inclusions <br />Clayburn soils <br />Splitro soils <br />Similar Inclusions <br />Buckskin soils <br />Cochetopa soils <br />Typical Profile <br />Inchau <br />Surface layer: <br />0 to 1 inch=mat of needles, twigs, and leaves <br />I to 5 inches=dark grayish brown very fine sandy loam <br />Subsurface layer: <br />5 to 11 inches=grayish brown very fine sandy loam <br />Subsoil: <br />11 to 16 inches=yellowish brown sandy clay loam <br />16 to 21 inches=light yellowish brown sandy clay loam <br />21 to 27 inches=light yellowish brown very fine sandy loam <br />Bedrock: <br />27 inches=soft fractured sandstone bedrock <br />Soil Properties and Qualities <br />Inchau <br />Parent material: residuum and colluvium derived from sandstone <br />Depth class: moderately deep <br />Drainage class: well drained <br />Permeability: moderate <br />Available water capacity: low <br />Potential rooting depth: 20 to 40 inches <br />Runoff: very high <br />Hazard of water erosion: very high <br />Hazard of soil blowing: low <br />Typical Profile <br />