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Custom Soil Resource Report <br /> Gunnison Area, Colorado, Parts of Gunnison, Hinsdale, and Saguache <br /> Counties <br /> DeB—Dewville loam, 1 to 5 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: jqdt <br /> Elevation: 9,000 to 10,000 feet <br /> Frost-free period: 50 to 70 days <br /> Farmland classification: Farmland of statewide importance <br /> Map Unit Composition <br /> Dewville and similar soils: 90 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Dewville <br /> Setting <br /> Landform: Terraces, valleys, fans <br /> Landform position (three-dimensional): Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Mixed, rhyolite alluvium derived from tuff and/or mixed alluvium <br /> derived from rhyolite and/or mixed alluvium derived from sandstone <br /> Typical profile <br /> Oe- 0 to 1 inches: moderately decomposed plant material <br /> H1 - 1 to 10 inches: loam <br /> H2- 10 to 22 inches: sandy clay loam <br /> H3-22 to 60 inches: sandy loam <br /> Properties and qualities <br /> Slope: 1 to 5 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Well drained <br /> Runoff class: Low <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately high to high <br /> (0.20 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 /> Calcium carbonate, maximum in profile: 10 percent <br /> Salinity, maximum in profile: Nonsaline to very slightly saline(0.0 to 2.0 mmhos/cm) <br /> Available water storage in profile: Moderate (about 7.6 inches) <br /> Interpretive groups <br /> Land capability classification(irrigated): 5c <br /> Land capability classification(nonirrigated): 6c <br /> Hydrologic Soil Group: B <br /> Ecological site: Mountain Outwash (R048AY281C0) <br /> 12 <br />