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Rio Grande County Area, Colorado <br />LuB— Luhon loam, 1 to 3 percent slopes <br />Map Unit Setting <br />Elevation: 7,700 to 8,500 feet <br />Frost-free period: 90 to 115 days <br />Map Unit Composition <br />Luhon and similar soils: 100 percent <br />Description of Luhon <br />Setting <br />Landform: Valley sides, alluvial fans <br />Down -slope shape: Linear <br />Across -slope shape: Linear <br />Parent material: Alluvium <br />Properties and qualities <br />Slope: 1 to 3 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: 30 percent <br />Gypsum, maximum content: 4 percent <br />Maximum salinity: Nonsaline to very slightty saline (2.0 to 4.0 mmhos/ <br />cm) <br />Sodium adsorption ratio, maximum: 5.0 <br />Available water capacity: High (about 10.3 inches) <br />interpretive groups <br />Land capability classification (irrigated): 3e <br />Land capability (nonirrigated): 6e <br />Ecological site: Limy Bench (R051 XY276C0) <br />Typical profile <br />0 to 47 inches: Loam <br />47 to 60 inches: Sandy clay loam <br />Data Source Information <br />Soil Survey Area: Rio Grande County Area, Colorado <br />Survey Area Data: Version 8. Aug 3, 2010 <br />