PERMFILE69934 - Laserfiche WebLink

Home Browse Search

SOIL DESCRIPTIONS • (Soils No. 1 and 2 are found in area adjacent to creek} Soil No. l This is a deep, poorly drained soil on a nearly level to gently sloping stream terrace. It formed in mixed coarse-t~ztured alluvium. Typically the surface. layer is a very dark gray loam about 4 inches thick. The upper underlying material is a dark brown sand with yellowish red mottles about 10 inches thick. The lower underlying material is sand and gravel about 22 inches thick. A water table was present at 3~ches. Permeability is moderate. Effective rooting depth is 36 inches or more. Available water capacity is low. Surface runoff is slow and erosion hazard-is low from water. Soil No, 2 This is a deep, somewhat poorly drained soil on a nearly level to gently sloping stream 'terrace.. It formed in mixed medium-textured • alluvium. Typically the surface layer is a very dark grayish brown loam about 13 inches thick. The subsoil is a very dark grayish brown sandy loam with.yellowi.sh red mottles about 30 inches thick. The sub- stratum is sand, gravel, and cobbles to 60 inches or more. Permeability is moderate. Effective rooting depth is 60 inches or more. Available water capacity is moderate. Surface runoff is slow and erosion hazard is low from water. Mapping Unit 2VD - Routt loam, 3 to 25 percent slopes This is a deep,. well-drained soil on gently sloping to moderately steep benches and mountain sideslopes at elevations of 7000 to 8200 feet. It formed in mixed colluvium and residuum. The. average annual precipitation is 20 to 25 inches, the average annual ai.r temperature is 37 to 40 degrees F., and the frost-free season is 40 to 65 days. Included in this unit are Coutis fine sandy loam,. Unnamed (2) loam, and Cochetopa fine sandy loam. Typically the surface layer is very dark grayish brown to brown loam about 26 inches thick. The upper subsoil layer is yellowish 89