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Custom Soil Resource Report <br />Landform: Dipslopes on cuestas, mesas <br />Landform position (two-dimensional): Summit <br />Other vegetative classification: LOAMY FOOTHILLS (048AY284CO) <br />Rock outcrop <br />Percent of map unit. 5 percent <br />Landform: Mesas, cuestas <br />Landform position (two-dimensional): Backslope <br />262—Arabrab-Evpark-Parkelei complex, 3 to 20 percent slopes <br />Map Unit Setting <br />National map unit symbol. k28v <br />Elevation: 7,000 to 8,000 feet <br />Mean annual precipitation: 12 to 16 inches <br />Mean annual air temperature: 45 to 47 degrees F <br />Frost -free period. 110 to 130 days <br />Farmland classification: Not prime farmland <br />Map Unit Composition <br />Evpark and similar soils: 40 percent <br />Arabrab and similar soils: 40 percent <br />Parkelei and similar soils: 15 percent <br />Minor components: 5 percent <br />Estimates are based on observations, descriptions, and transects of the mapunit. <br />Description of Arabrab <br />Setting <br />Landform: Dipslopes on cuestas, mesas <br />Parent material: Loamy slope alluvium derived from sandstone over loamy residuum <br />weathered from sandstone <br />Typical profile <br />Oi - 0 to 2 inches: slightly decomposed plant material <br />A - 2 to 7 inches: fine sandy loam <br />Bt - 7 to 12 inches: sandy clay loam <br />R - 12 to 16 inches: unweathered bedrock <br />Properties and qualities <br />Slope: 3 to 20 percent <br />Depth to restrictive feature: 7 to 19 inches to lithic bedrock <br />Natural drainage class: Well drained <br />Runoff class: Very high <br />Capacity of the most limiting layer to transmit water (Ksat): Very low to high (0.00 <br />to 1.98 in/hr) <br />Depth to water table: More than 80 inches <br />Frequency of flooding: None <br />Frequency of ponding: None <br />Calcium carbonate, maximum in profile: 10 percent <br />Salinity, maximum in profile: Nonsaline (0.0 to 1.0 mmhos/cm) <br />13 <br />