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Map Unit Description — Ridgway Area, Colorado, Parts of Delta, Gunnison, <br />Montrose, and Ouray Counties <br />Landform: Dipslopes on cuestas <br />Ecological site: Semidesert Loam (R035XY325C0) <br />Rock outcrop <br />Percent of map unit: 2 percent <br />Landform: Ledges on cuestas <br />32D— Barx - Samala complex, 3 to 15 percent slopes <br />Map Unit Setting <br />Elevation: 6,200 to 7,000 feet <br />Mean annual precipitation: 10 to 12 inches <br />Mean annual air temperature: 47 to 49 degrees F <br />Frost -free period: 125 to 145 days <br />Map Unit Composition <br />Barx and similar soils: 70 percent <br />Samala and similar soils: 25 percent <br />Minor components: 5 percent <br />Description of Barx <br />Setting <br />Landform: Dipslopes on cuestas, mesas <br />Parent material: Fine -loamy slope alluvium derived from sandstone <br />and shale <br />Properties and qualities <br />Slope: 3 to 15 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: None <br />Frequency of ponding: None <br />Calcium carbonate, maximum content: 40 percent <br />Gypsum, maximum content: 4 percent <br />Maximum salinity: Nonsaline to slightly saline (0.0 to 5.0 mmhos /cm) <br />Sodium adsorption ratio, maximum: 8.0 <br />Available water capacity: Moderate (about 7.6 inches) <br />Interpretive groups <br />Land capability (nonirrigated): 6e <br />Ecological site: SEMIDESERT LOAM (R034XY325C0) <br />Typical profile <br />0 to 6 inches: Loam <br />6 to 15 inches: Clay loam <br />15 to 22 inches: Clay loam <br />22 to 32 inches: Clay loam <br />32 to 42 inches: Sandy clay loam <br />42 to 65 inches: Sandy clay loam <br />USDA Natural Resources Web Soil Survey <br />Conservation Service National Cooperative Soil Survey <br />10/27/2012 <br />Page 4 of 63 <br />