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• GEOGRAPHIC SETTING: <br />Parent material: reworked eolian material and alluvium derived from sandstone <br />Landform: alluvial fans, terraces, hills, and mesas <br />Slopes: 0 to 15 percent <br />Elevation: 4,400 to 7,800 feet <br />Mean annual temperature: 46 to 55 degrees F <br />Mean annual precipitation: 9 to 14 inches <br />Precipitation is fairly evenly distributed throughout the yearwith July and August being slightly wetter and June being <br />slightly dryer. <br />Frost-free period: 100 to 175 days <br />GEOGRAPHICALLY ASSOCIATED SOILS: These are the Abra, Begay, Mivida, Rizno, Sazi, Strych, and <br />Windwhistle soils. Abra soils lack an horizon of Gay accumulation. eegay and Mivida soils have coarse-loamy <br />partice size control sections. Sazi and Windwhistle soils have bedrock at a depth of 20 to 40 inches deep. Strych <br />soils have more than 35 percent rock fragments in the particle size control section. <br />DRAINAGE AND PERMEABILfTY: well drained, negligible to high runoff, moderate or moderatetyslow permeability <br />USE AND VEGETATION: These soils are used mainly for rangeland. The potential vegetation is Indian ricegrass, <br />galteta, Wyoming big sagebrush, and winterfat. <br />DISTRIBUTION AND EXTENT: Southeast Utah and southwest Colorado. LRR D, MLRA 34, 35, 39. This series <br />• is of moderate extent. <br />MLRA OFFICE RESPONSIBLE: Phoenix, Arizona <br />SERIES ESTABLISHED: Utah-Central Part, Grand County, Utah 1985. The name comes from the Bar X wash. <br />REMARKS: Diagnostic horizons and features recognized in this pedon are: <br />ochric epipedon: The zone from 0 to 3 inches. (A) <br />argillic horizon: The zone from 9 to 36 inches. (Bt1, Bt2, and Btk) <br />celcic horizon: The zone from 36 to 60 inches. (Bk1, Bk2, Bk3) <br />ParGde size control section: The zone from 9 to 29 inches. (8t1, Bt2, Btk) <br />Taxonomy version, 7th edition 1996 <br />ADDITIONAL DATA: Lab sampled S93CO083003. <br />National Cooperative Soil Survey <br />U.S.A. <br />LJ <br />(Revised March 2006) Attachment 2.04.9-3-5 <br />