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Map Unit Description— Ridgway Area, Colorado, Parts of Delta, Gunnison. <br />Montrose, and Ouray Counties <br />Down -slope shape: Convex <br />Across -slope shape: Convex <br />Parent material: Silty and clayey residuum weathered from <br />calcareous shale <br />Properties and qualities <br />Slope: 25 to 75 percent <br />Depth to restrictive feature: 4 to 40 inches to bedrock (paralithic) <br />Drainage class: Well drained <br />Capacity of the most limiting layer to transmit water (Ksat): Very low <br />to moderately high (0.00 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 content: 10 percent <br />Gypsum, maximum content: 4 percent <br />Maximum salinity: Very slightly saline to moderately saline (4.0 to <br />16.0 mmhos /cm) <br />Sodium adsorption ratio, maximum: 4.0 <br />Available water capacity: Very low (about 0.8 inches) <br />Interpretive groups <br />Land capability (nonirrigated): 7c <br />Ecological site: Silty Saltdesert (R034XY41000) <br />Typical profile <br />0 to 2 inches: Silty clay loam <br />2 to 4 inches: Paragravelly silty clay loam <br />4 to 26 inches: Weathered bedrock <br />26 to 39 inches: Weathered bedrock <br />39 to 118 inches: Weathered bedrock <br />Description of Badland <br />Setting <br />Landform: Hills, erosion remnants <br />Properties and qualities <br />Slope: 25 to 75 percent <br />Depth to restrictive feature: 0 to 4 inches to bedrock (paralithic) <br />Drainage class: Somewhat excessively drained <br />Capacity of the most limiting layer to transmit water (Ksat): Very low <br />to moderately high (0.00 to 0.20 in /hr) <br />Calcium carbonate, maximum content: 10 percent <br />Gypsum, maximum content: 4 percent <br />Maximum salinity: Very slightly saline to moderately saline (4.0 to <br />16.0 mmhos /cm) <br />Sodium adsorption ratio, maximum: 4.0 <br />Available water capacity: Very low (about 0.0 inches) <br />Interpretive groups <br />Land capability (nonirrigated): 8 <br />Typical profile <br />0 to 2 inches: Silty clay loam <br />2 to 12 inches: Weathered bedrock <br />USDA Natural Resources Web Soil Survey 10/27/2012 <br />Illull Conservation Service National Cooperative Soil Survey Page 46 of 63 <br />