2018-01-03_PERMIT FILE - C1981010 (7)

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complex, 25 to 75 Map Unit Setting Major Land Resource Area: 48A Elevation: 7,000 to 8,500 feet (2,134 to 2,591 meters) Mean annual precipitation: 16 to 20 inches (406 to 508 millimeters) Average annual air temperature: 37 to 45 degrees F (2.8 to 7.2 degrees C) Frost -free period: 50 to 85 days Note: Included in this unit in the Williams Fork Mountains area are Abor soils on footslopes. Map Unit Composition Ustorthents and similar soils: 55 percent Borolls and similar soils 35 percent Minor components: 10 percent Component Descriptions Ustorthents soils Landform: Mountainsides Position on landform: Footslopes and backslopes Parent material. Residuum and colluvium derived from sedimentary rocks Slope: 25 to 75 percent, southern to western aspects Depth to restrictive feature: 10 to 30 inches to bedrock (lithic) Drainage Class: Well drained Slowest permeability. 0.6 to 2.0 in./hr. (moderate) Available water capacity: About 1.5 inches (very low) Shrink -swell potential. About 1.5 percent (low) Hazard of flooding: None Depth to seasonal high water table: Greater than 72 inches Runoff class: High Calcium carbonate maximum: About 10 percent Gypsum maximum: None Salinity maximum: About 0 mmhos/cm (nonsaline) Sodium adsorption ratio: About 0 (nonsodic) Ecological site: Potential native vegetation: wheatgrass, Indian ricegrass, sagebrush, antelope bitterbrush, bluegrass, needle and thread, serviceberry true mountain mahogany Ustorthents soils Map Unit. 206 Local phase: frigid Depth class: shallow to moderately deep Drainage Class: well drained Slowest permeability. 0.6 to 2.0 in./hr. (moderate) Landform: canyons, mountains, mountainsides Position on landform: backslopes, footslopes Parent material: colluvium and/or residuum weathered from sedimentary rock, residuum and colluvium derived from sedimentary rocks Elevation: 5,000 to 8,500 feet (1,524 to 2,591 meters) Slope: 25.75 percent Climatic data: Mean annual precipitation: 9 to 20 inches (229 to 508 millimeters) Mean annual air temperature: 37 to 45 deorees F (2.8 to 7.2 dearees Cl Land capability subclass: (nonirrigated) 7e Typical profile 0 to 3 inches - very channery sandy loam 3 to 28 inches - channery sandy loam 28 to 32 inches - unweathered bedrock Borolls soils Landform: Mountainsides Position on landform: Footslopes and backslopes Parent material. Residuum and colluvium derived from sedimentary rocks Slope: 25 to 75 percent, eastern and northern aspects Depth to restrictive feature: 20 to 80 inches to bedrock (lithic) Drainage Class: Well drained Slowest permeability. 0.2 to 0.6 in./hr. (moderately slow) Available water capacity. About 4.5 inches (low) Shrink -swell potential. About 1.5 percent (low) Hazard of flooding: None Depth to seasonal high water table: Greater than 72 inches Runoff class: Very high Calcium carbonate maximum: About 5 percent Gypsum maximum: None Salinity maximum: About 0 mmhos/cm (nonsaline) Sodium adsorption ratio: About 0 (nonsodic) Ecological site: Potential native vegetation: Columbia needlegrass, Gambel's oak, Saskatoon serviceberry, elk sedge, letterman needlegrass, mountain big sagebrush, mountain brome, mountain snowberry, slender wheatgrass Land capability subclass: (nonirrigated) 7e Typical profile 0 to 19 inches - loam 19 to 30 inches - cobbly sandy clay loam 30 to 34 inches - unweathered bedrock Minor Components Abor and similar soils Composition: About 5 percent Landform: Mountainsides Position on landform: Footslope Rencot and similar soils Composition: About 5 percent Landform: Mountainsides Position on landform: Footslope Frost -free period: 50 to 105 days Taxonomic class: Ustorthents Typical Pedon Map Unit in which located. Ustorthents, frigid-Borolls complex, 25 to 75 percent slopes A - 0 to 3 inches; grayish brown (10YR 5/2) very channery sandy loam, dark grayish brown (10YR 4/2) moist; moderate fine granular structure; soft, very friable, nonsticky and nonplastic; 40 percent channers, 20 percent flagstones; neutral; clear wavy boundary. AC - 3 to 8 inches; light yellowish brown (10YR 6/4 very channery sandy loam; dark yellowish brown (10YR 4/4) moist; moderate fine and medium granular structure; soft, friable, nonsticky and nonplastic; 40 percent channers, 20 percent flagstones; mildly alkaline; clear wavy boundary.