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Custom Soil Resource Report <br /> Huerfano County Area, Colorado <br /> 57—Nunn clay loam, 0 to 3 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: 2tqyj <br /> Elevation: 5,800 to 7,800 feet <br /> Mean annual precipitation: 15 to 18 inches <br /> Mean annual air temperature: 48 to 52 degrees F <br /> Frost-free period: 100 to 130 days <br /> Farmland classification: Prime farmland if irrigated <br /> Map Unit Composition <br /> Nunn and similar soils: 90 percent <br /> Minor components: 10 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Nunn <br /> Setting <br /> Landform: Fan remnants <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Old alluvium <br /> Typical profile <br /> A -0 to 6 inches: clay loam <br /> Bt1 - 6 to 16 inches: clay loam <br /> Bt2- 16 to 23 inches: clay loam <br /> Bkl - 23 to 32 inches: clay loam <br /> Bk2-32 to 79 inches: 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): 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 in profile: 10 percent <br /> Salinity, maximum in profile: Very slightly saline (2.0 to 3.9 mmhos/cm) <br /> Available water storage in profile: High (about 9.9 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 3s <br /> Land capability classification (nonirrigated): 4c <br /> Hydrologic Soil Group: C <br /> Ecological site: Loamy Foothill (R049BY202C0) <br /> Hydric soil rating: No <br /> 8 <br />