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<br />105 - Colorow-Haverson, alkali complsx, 0 to 3 percent slopes. <br />This complex occurs on lo•w floodplains and along drainages primarily mapped <br />in Scullion Gulch and developed from mix ad stratified calcareous alluvium with <br />sodic spots on drainage bottoms and floodplains. It is comprised of about 50 <br />percent Colorow soils and 40 percent Haverson, alkali soils. S;nall areas of <br />Colorow, alkali soils were included in mapping. Colorow, alkali soils are like <br />typical Colorow soils except with sodium concentrations near th•~ surface. These <br />included soils occupy about 10 percent of the unit. <br />fhe Colorow soil is undeveloped, deep, and well-drained. In a typical <br />profile, the surface Byer is pale brown loan about 5 inches thick. Tne <br />subsurface soil is light yellowish brown loan about 11 inches thick. fhe <br />substratum is light gray silt loam to loam about 24 inches thick and is underlain <br />• with pale brown calcareous gravelly sandy loan to a depth of 40 to 60+ inches. <br />The Colorow soil has moderately rapid permeability and medium to slow runoff. <br />The erosion hazard is moderate from wind and water. Available waterholding <br />capacity is moderately high. Effective rooting depth is 60 inches or more. <br />The Haverson, alkali soil is deep, saline and sodic, and well-drained. In <br />a typical profile, the surface layer is pale brown loam about 3 inches thick. <br />fhe subsurface soil is pale brown sodic gravelly loan about ~ inches thick. Tha <br />substratum is pale brown sodic loan about 12 inchss thick and is underlain with <br />Salina and sodic pale brown calcareous alluvium at a depth of about 20 inches. <br />The Haverson, alkali soil has moderate permeability and medium runoff. 'f he <br />erosion hazard is moderate from wind and water. Available uaterholding capacity <br />is low to noderata. Effective rooting depth is 40 to 60 inches with deeper rooting <br />. greasewood. <br />