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Custom Soil Resource Report <br /> Map Unit Descriptions <br /> Arapaho-Roosevelt National Forest Area, Colorado, Parts of Boulder, <br /> Clear Creek, Gilpin, Grand, Park and Larimer Counties <br /> 2703B—Cypher-Ratake families complex, 5 to 40 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: tlxk <br /> Elevation: 6,500 to 8,500 feet <br /> Mean annual precipitation: 16 to 25 inches <br /> Mean annual air temperature: 45 to 48 degrees F <br /> Frost-free period: 70 to 90 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Ratake family and similar soils: 40 percent <br /> Cypher family and similar soils: 40 percent <br /> Minor components: 20 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Ratake Family <br /> Setting <br /> Landform: Mountain slopes <br /> Parent material: Colluvium and/or residuum derived from igneous and <br /> metamorphic rock <br /> Typical profile <br /> A -0 to 8 inches: very gravelly sandy loam <br /> Bw- 8 to 18 inches: very gravelly sandy loam <br /> Cr- 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 <br /> Natural drainage class: Somewhat excessively drained <br /> Runoff class: Medium <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 storage in profile: Very low (about 1.2 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): None specified <br /> Hydrologic Soil Group: D <br /> Other vegetative classification: Ponderosa pine/true mountain mahogany (PIPO/ <br /> CEMO2) (C1107), Ponderosa pine-Rocky mountain juniper/true mountain <br /> mahogany (PIPO-JUSC2/CEMO2) (C1115) <br /> Hydric soil rating: No <br /> Description of Cypher Family <br /> Setting <br /> Landform: Mountain slopes <br /> 12 <br />