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SOIL MAPPING CJNIT NO. 5: Valent Sand - 1-IS%slopes. • This is a deep, excessively-drained soil formed in wind-laid deposits on nearly level to sloping uplands. Typically the surface layer is brown sand about 5 inches thick. The underlying material, to a depth of 60 inches is brown sand. The soil in this unit differs from the other Valent soils found in the study area in that there is evidence of recent wind erosion. Thus the surface layer is somewhat thinner, and in some places is absent. In addition, the Valent soil in this unit lacks a transition layer (AC horizon) that is found in the other Valent soil mapping units. Some blowouts are found within this soil mapping unit. Permeability is rapid. Available water holding capacity is low to moderate. Effective rooting depth is 60 inches or more. This unit is particularly susceptible to wind erosion. Surface runoff is low and water erosion hazard is low. These soils are not suited for cropping except under irrigation. This unit is comprised of essentially 100 percent Valent soil as described above. Range Site Name: Deep Sand Range Si[e Soil Capability Classification: Irrigated: fVe Non-ircigated: VIe • SOIL MAPPING iJNIT N0. 6: Valent-Loup-Bcel - 0-2%slopes. This mapping unit consists of a complex of deep excessively rained, somewhat poorly, and poorly rained soils. The Valent soils, which make up approximately 75 percent of the area, are similar to those described in the other Valent mapping units except that mottling is common at depths of 50 to 60 inches. This indicates the upper limit of a water table. The Loup soils are deep poorly-drained soils in low lying areas that have formed in sandy alluvium. Boel soils are deep, somewhat poorly rained soils that formed in stratified sandy alluvium. They occur primarily in low lying areas. Permeability of these soils is rapid. Available water holding capacity is low to moderate. In the Loup soils a water table is present at or near the surface during the spring and at about 36 inchcs below the surface in the fall. A Water table is usually present about 24 to 36 inches below the surface in Bcel soils and at 50 [0 60 inchcs in the Valent. Surface Runoff is low and Water erosion hazard is low. Wind erosion hazard is high on disturbed areas. Range Site Name: A complex of Deep Sand and Sandy Meadow Soil Capability Classification: Irrigated: IVe Non-irrigated: Vle