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Custom Soil Resource Report <br /> 88—Rofork very gravelly sandy loam, 5 to 55 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: 2n84f <br /> Elevation: 8,100 to 10,000 feet <br /> Mean annual precipitation: 14 to 24 inches <br /> Mean annual air temperature: 36 to 41 degrees F <br /> Frost-free period: 50 to 80 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Rofork 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 Rofork <br /> Setting <br /> Landform: Mountains <br /> Landform position (three-dimensional): Mountaintop, mountainflank <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Slope alluvium derived from granite and gneiss over residuum <br /> weathered from granite and gneiss <br /> Typical profile <br /> Al - 0 to 5 inches: very gravelly sandy loam <br /> A2- 5 to 9 inches: extremely gravelly sandy loam <br /> AC-9 to 14 inches: extremely gravelly coarse sand <br /> Cr- 14 to 24 inches: bedrock <br /> Properties and qualities <br /> Slope: 5 to 55 percent <br /> Depth to restrictive feature: 10 to 20 inches to paralithic bedrock <br /> Drainage class: Well drained <br /> Runoff class: Very high <br /> Capacity of the most limiting layer to transmit water(Ksat):Very low to moderately <br /> low (0.00 to 0.14 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 /> Land capability classification (nonirrigated): 7e <br /> Hydrologic Soil Group: D <br /> Ecological site: R048AY240C0 -Shallow Pine <br /> 16 <br />