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<br />moderately steep mid-slopes and side-slopes of ridges. This mapping unit occurs in <br />• Section 25, T.SN R.85`N aT 7,100 to 7,300 feet elevation. <br />The soils of this phase do not vary significantly in horizonation and geo- <br />morphology from the Typic pedon (OS-04-OS-039) Buckskin loam. <br />Typically, the surface horizon is a dark brown loam ranging in thickness from 8 <br />to 10 inches. The subsoil is about 40 inches of dark brown to yellowish brown clay. <br />The substratum is a yellowish brown sandy clay loam and extends to depths greater <br />than S feet. Included in this mapping unit are small areas of Hesperus loam. This <br />soil is a fine-loamy, Pachic Argiboroll. The inclusions found make up about 10 <br />percent of the map unit. <br />Permeability is very slow. Water erosion hazard is moderate. Effective rooting <br />depth depends on the depth of the argillic horizon, which ranges from 25 to 40 <br />inches. Depth to ground water is greater than S feet. Stoniness class is 0. <br />Land capability unit is Vle. <br />MAP UNIT CoB: COCHETOPA LOAM, 2 TO 8 PERCENT SLOPE <br />• This deep, well-drained, fine textured soil occurs on gently sloping to moderately <br />sloping alluvial fans, terraces and mid-slopes. It is formed in alluvium derived from <br />sandstones and shales. This mapping unit occurs in Section 14, T.4N R.85W at 7,200 <br />to 7,300 feet elevation. <br />Typically, this soil does not vary significantly from the described series <br />Cochetopa loam except that the pedons at 2 to 8 percent slope are usually more <br />moist throughout and exhibit distinct mottles and gleyed material between 4 and 20 <br />inches below The surface. Calcareous substratum may be encountered about 30 <br />inches below the surface in This phase. <br />Included in this mapping unit is an irrigated phase of the Cochetopa loam. <br />Inclusions make up about 5 percent of the mapping unit. These soils are as described <br />above and appear in irrigated hay fields above Trout Creek. <br />Presently this soil is used for irrigated hay production or rangeland supporting <br />various grass species and Artemisia tridentate big sage. <br />Permeability is slow. Erosion hazard is slight. Effective rooting depth ranges <br />from 22 to 29 inches. Ground water depth is greater than S feet. Stoniness class <br />is 0. <br />• Land capability unit is Vlle. <br />2.3-5 <br />