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• <br />• <br />Custom Soil Resource Report <br />La Plata County Area, Colorado <br />7— Archuleta- Sanchez complex, 12 to 65 percent slopes <br />Map Unit Setting <br />Elevation: 7,000 to 8,500 feet <br />Mean annual precipitation: 18 to 22 inches <br />Mean annual air temperature: 40 to 45 degrees F <br />Frost -free period: 90 to 110 days <br />Map Unit Composition <br />Archuleta and similar soils: 45 percent <br />Sanchez and similar soils: 30 percent <br />Description of Archuleta <br />Setting <br />Landform: Mountainsides, ridges, hills <br />Landform position (three - dimensional): Mountainflank, side slope <br />Down -slope shape: Linear, convex <br />Across -slope shape: Linear, convex <br />Parent material: Residuum weathered from interbedded sandstone and shale <br />Properties and qualities <br />Slope: 12 to 65 percent <br />Depth to restrictive feature: 10 to 20 inches to paralithic bedrock <br />Drainage class: Well drained <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 />Available water capacity: Low (about 3.6 inches) <br />Interpretive groups <br />Land capability (nonirrigated): 7e <br />Typical profile <br />0 to 4 inches: Loam <br />4 to 12 inches: Clay loam, loam, gravelly clay loam <br />12 to 16 inches: Unweathered bedrock <br />Description of Sanchez <br />Setting <br />Landform: Hills, mountainsides, ridges <br />Landform position (three - dimensional): Mountainflank, side slope <br />Down -slope shape: Linear <br />Across -slope shape: Linear <br />Parent material: Residuum weathered from interbedded sandstone and shale <br />Properties and qualities <br />Slope: 12 to 45 percent <br />Depth to restrictive feature: 10 to 20 inches to lithic bedrock <br />Drainage class: Well drained <br />31 <br />