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Custom Soil Resource Report <br /> Elevation: 4,260 to 5,900 feet <br /> Mean annual precipitation: 10 to 12 inches <br /> Mean annual air temperature: 50 to 54 degrees F <br /> Frost-free period: 130 to 170 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Cascajo, very gravelly, 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 Cascajo, Very Gravelly <br /> Setting <br /> Landform:Terraces <br /> Landform position (three-dimensional): Riser, tread <br /> Down-slope shape: Convex <br /> Across-slope shape: Convex <br /> Parent material: Old alluvium <br /> Typical profile <br /> A - 0 to 4 inches: very gravelly sandy loam <br /> Bk-4 to 22 inches: very gravelly loam <br /> 2C1 -22 to 39 inches: extremely gravelly sand <br /> 2C2-39 to 79 inches: extremely gravelly sand <br /> Properties and qualities <br /> Slope:2 to 20 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Drainage class: Excessively drained <br /> Runoff class: Low <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately high to high <br /> (0.60 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: 30 percent <br /> Maximum salinity. Very slightly saline (2.0 to 3.9 mmhos/cm) <br /> Available water supply, 0 to 60 inches: Very low (about 1.7 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 6e <br /> Land capability classification (nonirrigated): 6e <br /> Hydrologic Soil Group: A <br /> Ecological site: R069XY064CO- Gravel Breaks LRU's A and B <br /> Hydric soil rating: No <br /> Minor Components <br /> Cascajo, gravelly <br /> Percent of map unit. 10 percent <br /> Landform:Terraces <br /> Landform position (three-dimensional): Riser <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Ecological site: R069XY064CO- Gravel Breaks LRU's A and B <br /> Hydric soil rating: No <br /> 17 <br />