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Frisco family <br />Percent of map unit:5 percent <br />Hydric soil rating: No <br />7700B—Leighcan family, 5 to 40 percent slopes <br />Map Unit Setting <br />National map unit symbol: tlym <br />Elevation: 9,000 to 11,200 feet <br />Mean annual precipitation: 20 to 40 inches <br />Mean annual air temperature: 36 to 39 degrees F <br />Frost-free period: 30 to 50 days <br />Farmland classification: Not prime farmland <br />Map Unit Composition <br />Leighcan 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 Leighcan Family <br />Setting <br />Landform:Mountain slopes <br />Parent material:Residuum and/or slope alluvium derived from igneous and <br />metamorphic rock <br />Typical profile <br />A - 0 to 2 inches: cobbly silt loam <br />AE - 2 to 9 inches: very cobbly silt loam <br />Bw - 9 to 28 inches: very cobbly sandy loam <br />BCd - 28 to 45 inches: extremely stony loamy sand <br />Cd - 45 to 60 inches: extremely stony loamy sand <br />Properties and qualities <br />Slope:5 to 40 percent <br />Depth to restrictive feature:20 to 60 inches to densic material <br />Drainage class:Somewhat excessively drained <br />Runoff class: High <br />Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high <br />(0.60 to 2.00 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 2.1 inches) <br />Interpretive groups <br />Land capability classification (irrigated): None specified <br />Hydrologic Soil Group: C <br />Custom Soil Resource Report <br />27