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Map Unit Description:Arents-Dumps,mine complex,5 to 80 percent slopes---Georgetown East Leavenworth Claim,Arents <br /> Area,Colorado,Parts of Clear Creek,Gilpin,and Park Counties Dumps,mine complex,5 to 80 <br /> percent slopes <br /> Georgetown Area, Colorado, Parts of Clear Creek, <br /> Gilpin, and Park Counties <br /> 1—Arents-Dumps, mine complex, 5 to 80 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: k07c <br /> Elevation: 7,050 to 10,200 feet <br /> Mean annual precipitation: 19 to 23 inches <br /> Mean annual air temperature: 37 to 45 degrees F <br /> Frost-free period: 40 to 85 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Arents and similar soils:45 percent <br /> Dumps, mine: 35 percent <br /> Minor components: 20 percent <br /> Estimates are based on observations, descriptions, and transects of <br /> the mapunit. <br /> Description of Arents <br /> Setting <br /> Landform: Mountain slopes <br /> Landform position (two-dimensional): Footslope, toeslope <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Mine spoil or earthy fill <br /> Typical profile <br /> Cl - 0 to 24 inches: very cobbly loamy coarse sand <br /> C2- 24 to 28 inches: gravelly sandy loam <br /> C3-28 to 33 inches: extremely cobbly loamy sand <br /> C4- 33 to 60 inches: extremely cobbly loamy sand <br /> Properties and qualities <br /> Slope: 5 to 80 percent <br /> Surface area covered with cobbles, stones or boulders: 2.0 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Drainage class: Somewhat excessively drained <br /> Runoff class: Low <br /> Capacity of the most limiting layer to transmit water(Ksat): High <br /> (2.00 to 6.00 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 2.0 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated)• None specified <br /> Land capability classification (nonirrigated): 7e <br /> Hydrologic Soil Group: A <br /> aNatural Resources Web Soil Survey 12/9/2024 <br /> Conservation Service National Cooperative Soil Survey Page 1 of 2 <br />