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ADVANCED COPY SUBJECT TO CHANGE <br />960-Typic Haplustolls, 25 to 65 <br />percent slopes <br />Map Unit Setting <br />Major Land Resource Area: 48A <br />Elevation: 8,000 to 9,000 feet (2,438 to 2,743 <br />meters) <br />Mean annual precipitation: 16 to 24 inches (406 <br />to 610 millimeters) <br />Mean annual air temperature: 43 to 45 degrees <br />F. (6.1 to 7.2 degrees C.) <br />Freeze-free period: 80 to 115 days <br />Map Unit Composition <br />Typic Haplustolls and similar soils: 85 percent <br />Minor components: <br />Component Descriptions <br />Typic Haplustolls soils <br />Landscape: Unspecified <br />Landform: Mountain slopes <br />Position on landform: Backslopes <br />Parent material: Loamy slope alluvium and <br />colluvium derived from mixed sources <br />Slope: 25 to 65 percent <br />Surface fragments: About 1 percent subangular <br />cobbles, about 2 percent subangular gravel <br />Depth to restrictive feature: Unspecified <br />Drainage class: Well drained <br />Slowest permeability..06 to 0.2 in/hr (slow) <br />Available water capacity: About 4.2 inches (low) <br />Shrink-swell potential: About 2.6 percent (low) <br />Flooding hazard: None <br />Ponding hazard: None <br />Seasonal high water table depth: Unspecified <br />Runoff class: High <br />Calcium carbonate maximum: None <br />Gypsum maximum: None <br />Salinity maximum: About 0 mmhos/cm <br />(nonsaline) <br />Sodium adsorption ratio maximum: About 0 <br />(nonsodic) <br />Relative effective annual precipitation: <br />Unspecified <br />Ecological site: Brushy Loam <br />Potential native vegetation: Gambel oak, Utah <br />serviceberry, elk sedge, slender wheatgrass, <br />western wheatgrass, Letterman needlegrass, <br />mountain brome, nodding brome, prairie <br />Junegrass, common chokecherry, Woods <br />rose, mountain snowberry <br />Land capability subclass (irrigated): Unspecified <br />Land capability subclass (nonirrigated): 6e <br />Typical Profile: <br />Oe-0 to 1 inches; moderately decomposed <br />plant material <br />A-1 to 4 inches; loam <br />Bw1-4 to 11 inches; gravelly loam <br />Bw2-11 to 21 inches; very gravelly coarse <br />sandy loam <br />C-21 to 41 inches; extremely gravelly <br />loamy coarse sand <br />Btb-41 to 62 inches; very gravelly sandy <br />clay loam <br />JPH <br />2/2004