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Custom Soil Resource Report <br /> Piedra Area, Colorado, Parts of Archuleta, Hinsdale, La Plata, Mineral, <br /> and Rio Grande Counties <br /> 1 D—Adel loam, 4 to 25 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: jt6j <br /> Elevation: 8,200 to 9,000 feet <br /> Mean annual precipitation: 23 to 27 inches <br /> Mean annual air temperature: 34 to 40 degrees F <br /> Frost-free period: 60 to 80 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Adel and similar soils: 90 percent <br /> Minor components: 10 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Adel <br /> Setting <br /> Landform: Hills, interfluves <br /> Landform position (two-dimensional): Toeslope, summit <br /> Landform position (three-dimensional): Interfluve <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Mixed alluvium and/or complex landslide deposits over residuum <br /> weathered from shale <br /> Typical profile <br /> A 1 - 0 to 21 inches: loam <br /> A2-21 to 25 inches: clay loam <br /> BC- 25 to 60 inches: gravelly clay loam <br /> 2Cr- 60 to 79 inches: bedrock <br /> Properties and qualities <br /> Slope: 4 to 25 percent <br /> Depth to restrictive feature: About 60 inches to paralithic bedrock <br /> Natural drainage class: Well drained <br /> Runoff class: Medium <br /> Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately <br /> high (0.00 to 0.20 in/hr) <br /> Depth to water table: More than 80 inches <br /> Frequency of flooding: None <br /> Frequency of ponding: None <br /> Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 <br /> mmhos/cm) <br /> Available water storage in profile: High (about 10.5 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): None specified <br /> Land capability classification (nonirrigated): 6e <br /> Hydrologic Soil Group: C <br /> Ecological site: Subalpine Loam (R048AY25000) <br /> Hydric soil rating: No <br /> 14 <br />