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Map Unit Description— Ridgway Area, Colorado, Parts of Delta, Gunnison, <br />Montrose, and Ouray Counties <br />Description of Shavano <br />Setting <br />Landform: Hills <br />Landform position (two - dimensional): Backslope <br />Parent material: Fine -loamy slope alluvium derived from sandstone <br />and shale <br />Properties and qualities <br />Slope: 3 to 25 percent <br />Depth to restrictive feature: 20 to 40 inches to bedrock (Iithic) <br />Drainage class: Well drained <br />Capacity of the most limiting layer to transmit water (Ksat): Very low <br />to high (0.00 to 1.98 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: 15 percent <br />Gypsum, maximum content: 2 percent <br />Maximum salinity: Nonsaline to very slightly saline (0.0 to 4.0 mmhos/ <br />cm) <br />Sodium adsorption ratio, maximum: 4.0 <br />Available water capacity: Low (about 4.5 inches) <br />Interpretive groups <br />Land capability (nonirrigated): 6e <br />Ecological site: SEMIDESERT LOAM (R034XY325C0) <br />Typical profile <br />0 to 5 inches: Sandy clay loam <br />5 to 21 inches: Sandy clay loam <br />21 to 33 inches: Sandy loam <br />33 to 35 inches: Unweathered bedrock <br />Description of Ustic Torrifluvents <br />Setting <br />Landform: Flood plains on cuesta valleys, flood -plain steps on cuesta <br />valleys <br />Parent material: Loamy alluvium derived from sandstone and shale <br />Properties and qualities <br />Slope: 3 to 7 percent <br />Depth to restrictive feature: More than 80 inches <br />Drainage class: Well drained <br />Capacity of the most limiting layer to transmit water <br />(Ksat): Moderately high to high (0.57 to 1.98 in /hr) <br />Depth to water table: More than 80 inches <br />Frequency of flooding: Rare <br />Frequency of ponding: None <br />Calcium carbonate, maximum content: 10 percent <br />Gypsum, maximum content: 4 percent <br />Maximum salinity: Nonsaline to very slightly saline (0.0 to 4.0 mmhos/ <br />cm) <br />USDA Natural Resources Web Soil Survey <br />" Conservation Service National Cooperative Soil Survey <br />10/27/2012 <br />Page 6 of 63 <br />