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PmE—Penrose-Minnequa complex, 1 to 15 percent slopes <br />Map Unit Setting <br />National map unit symbol: 2rgr8 <br />Elevation: 4,500 to 6,500 feet <br />Mean annual precipitation: 12 to 14 inches <br />Mean annual air temperature: 48 to 54 degrees F <br />Frost-free period: 125 to 170 days <br />Farmland classification: Not prime farmland <br />Map Unit Composition <br />Penrose and similar soils: 50 percent <br />Minnequa and similar soils: 35 percent <br />Minor components: 15 percent <br />Estimates are based on observations, descriptions, and transects of the mapunit. <br />Description of Penrose <br />Setting <br />Landform: Scarps, hills, hogbacks <br />Landform position (two-dimensional): Shoulder, backslope <br />Landform position (three-dimensional): Crest, side slope <br />Down-slope shape: Convex, linear <br />Across-slope shape: Convex, linear <br />Parent material: Slope alluvium over residuum weathered from limestone <br />Typical profile <br />A - 0 to 4 inches: channery loam <br />C - 4 to 15 inches: channery loam <br />R - 15 to 79 inches: bedrock <br />Properties and qualities <br />Slope: 1 to 15 percent <br />Depth to restrictive feature: 10 to 20 inches to lithic bedrock <br />Natural drainage class: Well drained <br />Runoff class: High <br />Capacity of the most limiting layer to transmit water (Ksat): Moderately low to <br />moderately high (0.06 to 0.20 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: 70 percent <br />Salinity, maximum in profile: Nonsaline (0.1 to 1.0 mmhos/cm) <br />Sodium adsorption ratio, maximum in profile: 1.0 <br />Available water storage in profile: Very low (about 1.8 inches) <br />Interpretive groups <br />Land capability classification (irrigated): 6s <br />Land capability classification (nonirrigated): 6s <br />Hydrologic Soil Group: D <br />Custom Soil Resource Report <br />30