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740-Ellaybee-Persayo complex, 5 to 15 percent slopes (ChC/ChC2) Map Unit Setting MLRA: 34 Elevation: 5,000 to 6,300 feet (1,524 to 1,920 meters) Average annual precipitation: 8 to 10 inches (203 to 254 millimeters) Average annual air temperature: 48 to 52 degrees F. (9 to 11 degrees C.) Frost-free period: 140 to 160 days Map Unit Composition Ellaybee and similar soils - 50 percent Persayo and similar soils - 45 percent Minor components - 5 percent Component Description Ellaybee Soils Landform: Erosion remnant Geomorphic position: Shoulder, summit Parent material: Fine-loamy residuum weathered from Mancos shale Slope: 5 to 15 percent Depth to restrictive feature: Bedrock (paralithic) - 20 to 35 inches Drainage class: Well drained Slowest permeability c/ass:Moderately slow Available water capacity.• about 3.8 inches Flooding hazard: None Ponding hazard: None Water table: None Calcium carbonate: Highest is about 12.0 percent Gypsum: Highest is about 30.0 percent Salinity: Highest is about 28.0 mmhos/cm Sodicity: Highest SAR is about 50.0 Interpretive Groups Land capability (non irrigated): 7c Ecological site: CLAYEY SALTDESERT Potential vegetation: Gardner's saltbush, mat saltbush, shadscale saltbush, galleta Typical profile: A 0 to 5 inches; silty clay loam Byz1 5 to 14 inches; silty clay loam Byz2 14 to 20 inches; silty clay loam BCyz 20 to 31 inches; silty clay loam Cr 31 to 42 inches; highly fractured Mancos shale Persayo Soils Landform: Erosion remnant, pediment Geomorphic position: Shoulder, backslope, summit Parent material: Loamy residuum weathered from shale Slope: 5 to 15 percent Depth to restrictive feature: Bedrock (paralithic) -typically 10 inches Drainage class: Well drained Slowest permeability class:Moderately slow Available water capacity: about 1.8 inches Flooding hazard: None Ponding hazard: None Water table: None