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eh <br />ESPEY, HUSTON & ASSOCIATES, INC. <br />• <br />bedrock ranges from ZO to 20 inches. The underside and along cracks of <br />the rock fragments in the Ac and C1 have thin coatings in some pedons. <br />The 10 to 20 inch section has a clay content of 10 to 18 percent. The Ac <br />horizon has 60 percent coazse fragments with 10 percent more than <br />3 inches in length. The CI horizon has 80 percent coazse fragments with <br />15 percent being channery and 65 percent flags in size. <br />Reaction is moderately alkaline throughout. <br />Competing Series: Rentsac soils are similaz to the Redcreek, Redwash <br />and Thermopolis soils and aze near the Blazon, Forelle, Piceance, <br />Redcreek and Yam ac soils. Redcreek soils aze not skeletal. Redwash <br />soils have lithic contact at depths of 3 to 10 inches. Thermopolis soils <br />have paralithic contact at depth of 10 to 20 inches. The Blazon soils are <br />• derived from shale. The Forelle and Yamac soils aze deep, and the <br />Forelle soil has a thin, azgillic horizon, Piceance soils aze 20 to 40 <br />inches deep over bedrock. <br />Geographic Setting: Rentsac soils aze on foothills (upland entrenched <br />terrace}, Mean annual precipitation is about I6 inches and the mean <br />annua] air temperature is about 44°F. <br />Drainage and Permeability: The soils aze well drained. <br />3.1.12 Rhone Series <br />The Rhone series consists of deep soils that formed in material <br />weathered from hard, fine-grained sandstone. <br />Taxonomic Class: Rhone soils are fine-loamy, mixed Pachic Cryoborolls. <br />u <br />I-32 <br />