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17 -Greece loam <br />17 -Breese loam, 1 to 6 percent slopes <br />SETTING <br />Landforms: alluvial fans, flood plains, terraces <br />Elevation: 6,000 to 7,500 feet <br />Mean annual air temperature: 40 degrees F <br />Mean annual precipitation: 20 inches <br />Frost-free period: 90 days <br />CHARACTERISTICS OF THE GREECE SOIL <br />Parent material: alluvial material <br />Dominant native plants: western wheatgrass, brome, sedges, big sagebrush, serviceberry, <br />cottonwoods <br />Typical Profile <br />0 to 19 inches -dark brown loam <br />19 to 30 inches -pale brown sandy loam <br />30 to 60 inches -pale brown sandy loam <br />Depth class: deep <br />Drainage class: well drained <br />• Permeability: rapid <br />Available water capacity: moderate <br />Potential rooting depth: 55 inches <br />Surface runoff: moderate <br />Hazard of water erosion: moderate <br />Shrink-swell potential: low <br />Mass movement potential: low <br />COMPOSITION <br />Greece soil and similar soils: 80 percent <br />Fughes soil and similar soils: 5 percent <br />Curecanti soil and similar soils: 5 percent <br />Contrasting inclusions: 10 percent <br />CONTRASTING INCLUSIONS <br />Five percent wet alluvial land in the valleys <br />Five percent extremely gravelly and cobbly soils on upland and valley slopes <br />MAJOR USES <br />. Crop land, livestock grazing, wildlife, recreation <br />Soils Description Report -West Elk Mine <br />December 1994 WESTEC 7 <br />