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Map Unit Description: Yamac loam, 2 to 15 percent slopes —Rio Blanco County <br />Area, Colorado <br />Rio Blanco County Area, Colorado <br />104 —Yamac loam, 2 to 15 percent slopes <br />Map Unit Setting <br />Elevation: 5,800 to 7,100 feet <br />Mean annual precipitation: 13 to 16 inches <br />Mean annual air temperature: 40 to 45 degrees F <br />Frost -free period: 80 to 105 days <br />Map Unit Composition <br />Yamac and similar soils: 85 percent <br />Description of Yamac <br />Setting <br />Landform: Fans, terraces <br />Landform position (three- dimensional): Talf <br />Down -slope shape: Linear <br />Across -slope shape: Linear <br />Parent material: Alluvium and /or eolian deposits <br />Properties and qualities <br />Slope: 2 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 (0.60 to 2.00 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: 1 percent <br />Maximum salinity: Nonsaline to very slightly saline (0.0 to 4.0 mmhos/ <br />cm) <br />Sodium adsorption ratio, maximum: 5.0 <br />Available water capacity: Very high (about 27.5 inches) <br />Interpretive groups <br />Land capability classification (irrigated): 4e <br />Land capability (nonirrigated): 4e <br />Ecological site: Rolling Loam (R048AY298C0) <br />Typical profile <br />0 to 4 inches: Loam <br />4 to 22 inches: Loam, clay loam, silt loam <br />22 to 60 inches: Loam, clay loam, silt loam <br />Data Source Information <br />Soil Survey Area: Rio Blanco County Area, Colorado <br />Survey Area Data: Version 7, Sep 30, 2008 <br />USDA Natural Resources Web Soil Survey 12/15/2010 <br />111116 Conservation Service National Cooperative Soil Survey Page 1 of 1 <br />