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Hydric soil rating: No <br />Supervisor family <br />Percent of map unit:7 percent <br />Hydric soil rating: No <br />6731B—Rogert family, 5 to 40 percent slopes <br />Map Unit Setting <br />National map unit symbol: tlyd <br />Elevation: 8,400 to 9,400 feet <br />Mean annual precipitation: 22 to 40 inches <br />Mean annual air temperature: 36 to 41 degrees F <br />Frost-free period: 30 to 50 days <br />Farmland classification: Not prime farmland <br />Map Unit Composition <br />Rogert family and similar soils:85 percent <br />Minor components:15 percent <br />Estimates are based on observations, descriptions, and transects of the mapunit. <br />Description of Rogert Family <br />Setting <br />Landform:Mountainsides, hillslopes <br />Parent material:Colluvium and/or residuum derived from granite <br />Typical profile <br />A - 0 to 6 inches: very stony sandy loam <br />Bw - 6 to 11 inches: extremely gravelly sandy loam <br />Cr - 11 to 18 inches: bedrock <br />R - 18 to 28 inches: bedrock <br />Properties and qualities <br />Slope:5 to 40 percent <br />Depth to restrictive feature:10 to 20 inches to paralithic bedrock; 10 to 20 inches <br />to lithic bedrock <br />Drainage class:Somewhat excessively drained <br />Runoff class: Low <br />Capacity of the most limiting layer to transmit water (Ksat):Very low to moderately <br />low (0.00 to 0.06 in/hr) <br />Depth to water table:More than 80 inches <br />Frequency of flooding:None <br />Frequency of ponding:None <br />Available water supply, 0 to 60 inches: Very low (about 0.7 inches) <br />Interpretive groups <br />Land capability classification (irrigated): None specified <br />Hydrologic Soil Group: D <br />Custom Soil Resource Report <br />21