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Custom Soil Resource Report <br /> 92—Willowman gravelly sandy loam, 3 to 8 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: jnp7 <br /> Elevation: 6,500 to 7,600 feet <br /> Mean annual precipitation: 16 to 20 inches <br /> Mean annual air temperature: 48 to 52 degrees F <br /> Frost-free period: 100 to 130 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Willowman 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 Willowman <br /> Setting <br /> Landform: Fan remnants <br /> Landform position (three-dimensional): Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Cobbly&gravelly alluvium <br /> Typical profile <br /> A - 0 to 8 inches: gravelly sandy loam <br /> Bt- 8 to 15 inches: very cobbly sandy clay loam <br /> C1 - 15 to 21 inches: very cobbly sandy loam <br /> 2Ck- 21 to 44 inches: very gravelly loamy sand <br /> 2C2-44 to 60 inches: very gravelly sand <br /> Properties and qualities <br /> Slope: 3 to 8 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Well drained <br /> Runoff class: Medium <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately high to <br /> high (0.20 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: 40 percent <br /> Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 <br /> mmhos/cm) <br /> Available water storage in profile: Low (about 3.2 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): None specified <br /> Land capability classification (nonirrigated): 6s <br /> 35 <br />