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Map Unit Description:Gyprockmesa cobbty clay loam,warm,5 to 12 percent slopes— ducray pit <br /> DRAFT—Mesa County Area,Colorado <br /> Frost-free period: 170 to 190 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Gyprockmesa, cobbly, and similar soils: 85 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of <br /> the mapunit. <br /> Description of Gyprockmesa, Cobbly <br /> Setting <br /> Landform: Terraces, mesas <br /> Landform position (three-dimensional): Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material. Loamy slope alluvium derived from shale over <br /> cobbly alluvium derived from sandstone and shale <br /> Typicaf profile <br /> Ap-0 to 5 inches: clay loam <br /> Btk1 - 5 to 10 inches: clay loam <br /> Btk2- 10 to 15 inches: clay loam <br /> Btk3- 15 to 23 inches: gravelly clay loam <br /> 2Bky1 -23 to 35 inches: very cobbly clay loam <br /> 2Bky2-35 to 44 inches: cobbly clay loam <br /> 2Bky3-44 to 70 inches: stony loam <br /> Properties and. dualities <br /> Slope: 5 to 12 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): <br /> Moderately high(0.20 to 0.60 in/hr) <br /> Depth to s pater table: More than 80 inches <br /> Frequency of flooding: None <br /> Frequency of ponding: None <br /> Calcium carbonate, maximum in profile: 25 percent <br /> Gypsum, maximum in profile: 35 percent <br /> Salinity, maximum in profile: Very slightly saline to moderately <br /> saline (2.0 to 8.0 mmhos/cm) <br /> Sodium adsorption ratio, maximum in profile: 10.0 <br /> Available water storage in profile: Moderate(about 8,0 inches) <br /> interpretive groups <br /> Land capability classification (irrigated): 4e <br /> Land capability classification(nonimigated): 7c <br /> Hydrologic Soil Group: C <br /> Hydric soil rating: No <br /> Con827-.ci:t0 n sorv:,:r CO3P3.a4''E scl' Fay5 3 of 4 <br />