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Map Unit Description:Arents-Dumps,mine complex,5 to 80 percent slopes---Georgetown GEM <br /> Area,Colorado,Parts of Clear Creek,Gilpin,and Park Counties <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 /> Hydric soil rating: No <br /> Description of Dumps, Mine <br /> Setting <br /> Landform:Talus slopes <br /> Down-slope shape:Linear <br /> Across-slope shape: Linear <br /> Parent material:Acidic mine spoil or earthy fill derived from igneous <br /> and metamorphic rock <br /> usua Natural Resources Web Soil Survey 2/5/2025 <br /> dam— <br /> Conservation Service National Cooperative Soil Survey Page 3 of 4 <br />