2021-08-23_REVISION - M1976007UG

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Map Unit Description:Willowman-Leyden cobbly loams,9 to 30 percent slopes--Golden Area, Golden Mine Colorado,Parts of Denver,Douglas,Jefferson,and Park Counties Golden Area, Colorado, Parts of Denver, Douglas, Jefferson, and Park Counties 174—Willowman-Leyden cobbly loams, 9 to 30 percent slopes Map Unit Setting National map unit symbol: jpmz Elevation: 5,600 to 6,500 feet Mean annual precipitation: 15 to 17 inches Frost-free period: 126 to 142 days Farmland classification: Not prime farmland Map Unit Composition Willowman and similar soils: 60 percent Leyden and similar soils: 25 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Willowman Setting Landform: Hillslopes,terraces Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope, riser Down-slope shape: Linear Across-slope shape: Linear Parent material: Calcareous, cobbly, gravelly, loamy alluvium Typical profile H1 -0 to 6 inches: cobbly loam H2- 6 to 10 inches: very gravelly sandy clay loam, very gravelly loam, very gravelly clay loam H2-6 to 10 inches: very gravelly sandy loam, very gravelly loam H2-6 to 10 inches: H3- 10 to 60 inches: H3- 10 to 60 inches: Properties and qualities Slope: 9 to 30 percent Depth to restrictive feature: More than 80 inches Drainage class:Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.20 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content:30 percent i USDA Natural Resources Web Soil Survey 2/17/2021 Conservation Service National Cooperative Soil Survey Page 1 of 3