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Map Unit Description Cascajo gravelly sandy loam, 5 to 20 percent slopes -- -Weld County, <br />Colorado, Northern Part <br />Weld County, Colorado, Northern Part <br />20— Cascajo gravelly sandy loam, 5 to 20 percent slopes <br />Map Unit Setting <br />Elevation: 4,000 to 5,000 feet <br />Mean annual precipitation: 11 to 13 inches <br />Mean annual air temperature: 52 to 54 degrees F <br />Frost -free period: 120 to 160 days <br />Map Unit Composition <br />Cascajo and similar soils: 85 percent <br />Minor components: 15 percent <br />Description of Cascajo <br />Setting <br />Landform: Breaks, ridges <br />Down -slope shape: Linear <br />Across -slope shape: Linear <br />Parent material: Calcareous gravelly alluvium <br />Properties and qualities <br />Slope: 5 to 20 percent <br />Depth to restrictive feature: More than 80 inches <br />Drainage class: Excessively drained <br />Capacity of the most limiting layer to transmit water (Ksat) <br />to 6.00 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 content: 25 percent <br />Maximum salinity: Nonsaline (0.0 to 2.0 mmhos /cm) <br />Available water capacity: Low (about 3.9 inches) <br />Interpretive groups <br />Farmland classification: Not prime farmland <br />Land capability (nonirrigated): 7s <br />Hydrologic Soil Group: A <br />Ecological site: Gravel Breaks (R067BY063CO) <br />Typical profile <br />0 to 3 inches: Gravelly sandy loam <br />3 to 24 inches: Very gravelly loamy sand <br />24 to 60 inches: Very gravelly sand <br />Minor Components <br />Stoneham <br />Percent of map unit: 14 percent <br />High (2.00 <br />USDA Natural Resources Web Sod Survey 11/20/2013 <br />Conservation Service National Cooperative Sod Survey Pagel of 2 <br />