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762-Mesa clay loam, 2 to 5 Percent (MIB) <br />Map Unit Setting <br />Major Land Resource Area: 34 <br />Elevation.• 4,800 to 6,200 feet (1,463 to 1,890 meters) <br />Mean annual precipitation: 8 to 10 inches (203 to 254 millimeters) <br />Mean annual air temperature: 49 to 51 degrees F. (9.5 to 10.5 degrees C.) <br />Frost-free period: 140 to 160 days <br />Mesa and similar soils: 85 percent <br />Minor components: <br />Map Unit Composition <br />Component Descriptions <br />Mesa soils <br />Landscape: Unspecified <br />Landform: Outwash terrace <br />Geomorphic position: Unspecified <br />Parent material: Fine-loamy alluvium derived from sandstone over sandy, gravelly and cobbly glaciofluvial <br />deposits derived from mixed sources <br />Slope: 2 to 5 percent <br />Surface fragments: About 3 percent coarse well rounded gravel <br />Depth to restrictive feature: Unspecified <br />Drainage class: Well drained <br />Slowest permeability:.06 to 0.2 in/hr (slow) <br />Available wafer capacity: About 5.1 inches (low) <br />Shrink-swell potential: About 0.1 percent (low) <br />Flooding hazard: None <br />Ponding hazard: Unspecified <br />Seasonal high water table depth: Unspecified <br />Runoff class: Medium <br />Calcium carbonate maximum: About 50 percent <br />Gypsum maximum: About 1 percent <br />Salinity maximum: About 2 mmhos/cm (nonsaline) <br />Sodium adsorption ratio maximum: About 5 (slightly sodic) <br />Ecological site: LOAMY SALTDESERT <br />Potential native vegetation: galleta, Gardner's saltbush, Indian ricegrass, saline wildrye, shadscale <br />saltbush, bottlebrush squirreltail, needleandthread, winterfat, yellow rabbitbrush <br />Land capability subclass (irrigated): 3e <br />Land capability subclass (nonirrigated): 7c <br />Typical Profile: <br />Al-0 to 4 inches; clay loam <br />A2-4 to 9 inches; clay loam <br />Btk1-9 to 14 inches; clay loam <br />Btk2-14 to 21 inches; gravelly clay loam <br />Btk3-21 to 27 inches; gravelly sandy clay loam <br />2BCk-27 to 60 inches; extremely cobbly loamy sand <br />