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11/97 <br /> 110 =Elkhead clay loam, 0 to 3 percent slopes <br /> Additional symbols : 23A, 23C <br /> Depth class : very deep <br /> Drainage class : moderately well drained <br /> Seasonal high water table : 30 to 40 inches <br /> Landform: flood plains <br /> Position on landform: upper flood plains <br /> Parent material : alluvium derived from shale <br /> Elevation: 6, 500 to 8, 000 feet <br /> Air temperature: 37 to 40 degrees F <br /> Annual precipitation: 18 to 25 inches <br /> Frost-free period: 35 to 55 days <br /> Composition <br /> Elkhead soil and similar inclusions : 85 percent <br /> Contrasting inclusions : 15 percent <br /> Contrasting Inclusions <br /> Somewhat poorly to very poorly drained Aquolls and Aquents soils in <br /> micro-lows, old oxbows, and depressions <br /> Soils similar to Elkhead but are well drained in micro-highs <br /> Silas soils in all landscape positions in areas of fine-loamy alluvium <br /> Menbar soils in all landscape positions in areas of fine-loamy <br /> alluvium <br /> Typical Profile <br /> Surface layer: <br /> 0 to 18 inches=very dark grayish brown clay loam <br /> Subsoil : <br /> 1S to 38 inches=dark brown clay <br /> 38 to 50 inches=dark grayish brown clay <br /> 50 to 75 inches=yellowish brown clay <br /> Soil Properties and Qualities <br /> Permeability: slow <br /> Available water capacity: high <br /> Potential rooting depth: 60 or more inches for water-tolerant plants <br /> and 30 to 40 inches for non-water-tolerant plants <br /> Flooding: rare <br /> Runoff : high <br /> Hazard of water erosion : moderate <br /> Hazard of soil blowing : moderate <br /> Depth to carbonates : 20 to 40 inches <br /> Major Current Uses <br /> irrigated hay and pasture <br /> livestock grazing <br /> wildlife habitat <br /> Major Management Factors <br />