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SOIL DESCRIPTIONS <br /> 5—Buena Vista sandv loam.3 to 20 percent slopes <br /> Map Unit Setting <br /> • National map unitsymbol:jqmy <br /> • Elevation:7,800 to 8,200 feet <br /> • Mean annual precipitation: 14 to 16 inches <br /> • Mean annual air temperature:40 to 44 degrees F <br /> • Frost free period:55 to 75 days <br /> • Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> • Buena vista and similarsoils:85 percent <br /> • Minor components: 15 percent <br /> • Estimates are based on observations, descriptions, and transects of the map unit. <br /> Description of Buena Vista <br /> Setting <br /> • Landform: Hills <br /> • Landform position(two-dimensionalJ: Footslope, backslope, shoulder, summit <br /> • Landform position(three-dimensionalJ:Side slope <br /> • Down-slope shape: Linear <br /> • Across-slope shape: Linear <br /> • Parent material: Residuum weathered from trachyte <br /> Typical profile <br /> • H1 -0 to 10 inches:sandy loam <br /> • H2-10 to 15 inches:extremely channery sandy loam <br /> • H3-15 to 19 inches:extremely channery sandy loam <br /> • H4-19 to 26 inches:extremely flaggy sandy loam <br /> • HS-26 to 30 inches:extremely channery sandy loam <br /> • H6-30 to 34 inches: unweathered bedrock <br /> Properties and qualities <br /> • Slope:3 to 20 percent <br /> • Depth to restrictive feature: 20 to 40 inches to lithic bedrock <br /> • Drainage class:Well drained <br /> • Runoff class: High <br /> • Capacity of the most limiting layer to transmit water(KsatJ: Moderately low to <br /> moderately high (0.06 to 0.20 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 content: 15 percent <br /> • Available water capacity:Very low(about 1.9 inches) <br /> Interpretive groups <br /> • Land capability classification (irrigatedJ: None specified <br /> • Land capability classification (nonirrigatedJ: 7s <br />