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Custom Soil Resource Report <br /> 16—Colby loam, 3 to 5 percent slopes <br /> Map Unit Setting <br /> National map unit symbol. 361 r <br /> Elevation: 4,850 to 5,050 feet <br /> Mean annual precipitation: 12 to 16 inches <br /> Mean annual air temperature: 48 to 50 degrees F <br /> Frost-free period: 135 to 155 days <br /> Farmland classification: Farmland of statewide importance <br /> Map Unit Composition <br /> Colby and similar soils: 85 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Colby <br /> Setting <br /> Landform: Ridges, hills <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material. Calcareous eolian deposits <br /> Typical profile <br /> H1 -0 to 7 inches: loam <br /> H2- 7 to 60 inches: silt loam <br /> Properties and qualities <br /> Slope: 3 to 5 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): Moderately high to <br /> high (0.57 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 profile: 15 percent <br /> Available water storage in profile: High (about 10.6 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 3e <br /> Land capability classification (nonirrigated): 4e <br /> Hydrologic Soil Group: B <br /> Ecological site: Loamy Plains (R067BY002CO) <br /> Hydric soil rating: No <br /> 58 <br />