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Map Unit Description:Colby silt loam,0 to 3 percent slopes--Kiowa County,Colorado <br /> Kiowa County, Colorado <br /> 57—Colby silt loam, 0 to 3 percent slopes <br /> Map Unit Setting <br /> National map unit symbol. 2v1 qy <br /> Elevation: 3,300 to 6,000 feet <br /> Mean annual precipitation: 14 to 16 inches <br /> Mean annual air temperature. 50 to 54 degrees F <br /> Frost-free period: 130 to 170 days <br /> Map Unit Composition <br /> Colby and similar soils: 90 percent <br /> Minor components: 10 percent <br /> Estimates are based on observations, descriptions, and transects of <br /> the mapunit. <br /> Description of Colby <br /> Setting <br /> Landform: I nterfl uves <br /> Landform position (two-dimensional): Summit <br /> Landform position (three-dimensional): Interfluve <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Loess <br /> Typical profile <br /> Ap-0 to 5 inches: silt loam <br /> Bk1 -5 to 16 inches: silt loam <br /> Bk2- 16 to 32 inches: silt loam <br /> Bk3-32 to 79 inches: silt loam <br /> Properties and qualities <br /> Slope: 0 to 3 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Well drained <br /> Runoff class: Low <br /> Capacity of the most limiting layer to transmit water(Ksat): <br /> Moderately high to high (0.60 to 2.00 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 profe. 14 percent <br /> Salinity, maximum in profile: Very slightly saline (2.0 to 3.9 <br /> mmhos/cm) <br /> Available water storage in profile: Very high (about 12.6 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 3e <br /> Land capability classification (nonirrigated): 4c <br /> Hydrologic Soil Group: B <br /> USDA Natural Resources Web Soil Survey 12/26/2019 <br /> Conservation Service National Cooperative Soil Survey Page 1 of 2 <br />