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Map Unit Description: Fluvaquents, 0 to 3 percent slopes-Archuleta County <br />Area, Colorado <br />TIERRA PIEDRA RANCH, TIERRA PIEDRA GRAVEL PIT <br />Archuleta County Area, Colorado <br />AM-B-Fluvaquents, 0 to 3 percent slopes <br />Map Unit Setting <br />Elevation: 6,000 to 7,700 feet <br />Mean annual precipitation: 13 to 20 inches <br />Mean annual air temperature: 44 to 50 degrees F <br />Frost-free period: 90 to 130 days <br />Map Unit Composition <br />Fluvaquents and similar soils: 85 percent <br />Description of Fluvaquents <br />Setting <br />Landform: Flood plains <br />Landform position (three-dimensional): Dip <br />Down-slope shape: Linear <br />Across-slope shape: Linear <br />Parent material. Alluvium derived from mixed sources <br />Properties and qualities <br />Slope: 0 to 3 percent <br />Depth to restrictive feature: More than 80 inches <br />Drainage class: Poorly drained <br />Capacity of the most limiting layer to transmit water <br />(Ksat): Moderately high to high (0.60 to 2.00 in/hr) <br />Depth to water table: About 12 to 20 inches <br />Frequency of flooding: Frequent <br />Frequency of ponding: None <br />Available water capacity. Low (about 3.7 inches) <br />Interpretive groups <br />Land capability (nonirrigated): 7w <br />Ecological site: River Bottom (R036XY327CO) <br />Other vegetative classification: RIVER BOTTOM (048AY236CO) <br />Typical profile <br />0 to 10 inches: Gravelly loam <br />10 to 60 inches: Stratified extremely gravelly sand to very cobbly <br />sandy loam <br />Data Source Information <br />Soil Survey Area: Archuleta County Area, Colorado <br />Survey Area Data: Version 4, Sep 5, 2007 <br />USDA Natural Resources Web Soil Survey 8/17/2009 <br />Conservation Service National Cooperative Soil Survey Page 1 of 1