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Custom Soil Resource Report <br /> Pike National Forest, Eastern Part, Colorado, Parts of Douglas, El Paso, <br /> Jefferson, and Teller Counties <br /> 46—Sphinx-Rock outcrop complex, 15 to 80 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: jpjy <br /> Elevation: 6,500 to 9,200 feet <br /> Mean annual precipitation: 15 to 24 inches <br /> Mean annual air temperature: 43 to 48 degrees F <br /> Frost-free period: 70 to 100 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Sphinx and similar soils:60 percent <br /> Rock outcrop:25 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Sphinx <br /> Setting <br /> Landform: Mountain slopes <br /> Landform position (three-dimensional): Mountaintop, mountainflank <br /> Down-slope shape:Convex, linear <br /> Across-slope shape:Convex, linear <br /> Parent material:Weathered from granite <br /> Typical profile <br /> Oi-0 to 1 inches: slightly decomposed plant material <br /> A - 1 to 5 inches: gravelly coarse sandy loam <br /> AC-5 to 13 inches: very gravelly loamy coarse sand <br /> Cr- 13 to 61 inches: weathered bedrock <br /> Properties and qualities <br /> Slope: 15 to 70 percent <br /> Depth to restrictive feature: 10 to 20 inches to paralithic bedrock <br /> Drainage class:Somewhat excessively 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 0.06 in/hr) <br /> Depth to water table:More than 80 inches <br /> Frequency of flooding:None <br /> Frequency of ponding:None <br /> Maximum salinity: Nonsaline to very slightly saline(0.0 to 2.0 mmhos/cm) <br /> Available water supply, 0 to 60 inches: Very low(about 0.9 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 /> Other vegetative classification: Ponderosa pine/kinnikinnick(PIPO/ARUV) <br /> (C1140) <br /> Hydric soil rating: No <br /> 14 <br />