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Description of Dumps,Mine <br /> Setting <br /> Landform. Talus slopes <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Acidic mine spoil or earthy fill derived from igneous and <br /> metamorphic rock <br /> Typical profile <br /> C-0 to 60 inches: fragmental material <br /> Interpretive groups <br /> Land capability classification(irrigated): None specified <br /> Land capability classification(nonintated): 8 <br /> Hydrologic Soil Group: A <br /> Hydric soil rating: No <br /> Minor Components <br /> Rubble land <br /> Percent of map unit: 10 percent <br /> Landform: Talus slopes <br /> Hydric soil rating: No <br /> Rock outcrop <br /> Percent of map unit: 5 percent <br /> Landform: Cliffs, mountain slopes, ridges <br /> Landform position(two-dimensional): Shoulder,backslope <br /> Hydric soil rating: No <br /> Lone rock <br /> Percent of map unit: 5 percent <br /> Landform: Alluvial fans,terraces,mountain slopes <br /> Landform position (two-dimensional): Footslope <br /> Ecological site: Mountain Loam(R048AY228CO) <br /> Hydric soil rating: No <br /> 60—Troutdale-Rogert-Kittredge complex, 3 to 15 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: k6jr <br /> Elevation: 7,400 to 9,600 feet <br /> Mean annual precipitation: 17 to 21 inches <br /> Mean annual air temperature: 36 to 43 degrees F <br /> Frost-free period: 25 to 75 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Troutdale and similar soils: 40 percent <br /> 25 <br />