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Map Unit Description—Phillips County,Colorado <br /> Minor Components <br /> Ascalon <br /> Percent of map unit: 10 percent <br /> Landform: Interfluves <br /> Landform position (two-dimensional): Summit, shoulder <br /> Landform position (three-dimensional): Interfluve <br /> Down-slope shape: Linear <br /> Across-slope shape. Linear <br /> Ecological site: Loamy Plains (R067BY002CO) <br /> Hydric soil rating: No <br /> Rago, rarely flooded <br /> Percent of map unit: 4 percent <br /> Landform: Drainageways <br /> Landform position (two-dimensional): Toeslope <br /> Landform position (three-dimensional): Base slope, head slope <br /> Down-slope shape: Linear <br /> Across-slope shape: Concave <br /> Ecological site: Overflow(R067BY036CO) <br /> Hydric soil rating: No <br /> Rago, ponded <br /> Percent of map unit: 1 percent <br /> Landform: Playas <br /> Landform position (two-dimensional): Summit <br /> Landform position (three-dimensional): Interfluve <br /> Down-slope shape: Concave <br /> Across-slope shape: Concave <br /> Ecological site: Closed Upland Depression (R067BY01000) <br /> Hydric soil rating: No <br /> PaC—Platner loam, 3 to 5 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: 2tlmz <br /> Elevation: 3,580 to 5,600 feet <br /> Mean annual precipitation: 13 to 19 inches <br /> Mean annual air temperature: 46 to 52 degrees F <br /> Frost-free period: 140 to 165 days <br /> Farmland classification: Prime farmland if irrigated <br /> Map Unit Composition <br /> Platner and similar soils: 85 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of <br /> the mapunit. <br /> Description of Platner <br /> Setting <br /> Landform: Interfluves <br /> USDA Natural Resources Web Soil Survey 10/23/2019 <br /> Conservation Service National Cooperative Soil Survey Page 4 of 8 <br />