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eh <br />ESPEY, HUSTON & ASSOCIATES, INC. <br />C~ <br />calcazeous with segregated lime threads and spots of light gray <br />(SYR7/1); gradual wavy boundary. (10 to 20 inches thick.) <br />C2 50 to 66 inches; olive gray (SYRS/2) light clay, olive gray (SYR4/1) <br />moist; massive; hazd, friable; sticky and plastic; few fine roots; <br />many disoriented gray shale chips; strongly calcazeous but little <br />segregated lime. <br />Geographic Setting: These soils occupy the broad, more gentle slopes <br />that have northerly aspects in the Rio Blanco County azea. <br />Drainage and Permeability: Barnette Soils are well-drained, with <br />medium surface runoff and moderate to moderately slow permeability. <br />• Use and Vegetation: These soils aze used for livestock grazing and <br />wildlife habitat. Potential native vegetation of all three soils includes <br />serviceberry, snowberry, big sagebrush and gambel oak with an under <br />story of letterman needlegrass, mountain brome, slender and western <br />wheatgrass, yazrow, lupine and elk sedge. <br />3.1.4 Clayburn Series <br />The Clayburn series consists of deep soils formed in mixed alluvial <br />colluoial materials. In a typical profile the surface layer is very dark, grayish brown <br />loam about 4 inches thick. The subsurface layer is very dazk, grayish brown clay <br />loam about 10 inches thick. The subsoil layer is dazk grayish brown, heavy clay loam <br />about 20 inches thick; it overlies dark grayish brown clay loam that extends to 60 <br />inches or more. Effective rooting depth is 60 inches or more. <br />Typical Pedon: Clayburn soil consist of loam in native vegetation with 3 <br />to 65 percent slopes. <br />• <br />I-10 <br />