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this section for results of the various studies and investigations <br /> as well as the general soils map (Exhibit III-G-1) located <br /> in a map jacket at the rear of this volume . Intermountain <br /> Soils , Inc . soils and vegetation inventories . <br /> 2 . Soil types <br /> The following soil types are listed in order of <br /> relative abundance with the first one listed being the most <br /> abundant . The Class IV soils map which accompanies this <br /> description represents the soils graphically. <br /> SL--Sandy loam over Mancos shale; this soil predominates <br /> in the approximate northern half of the basin. It varies <br /> greatly with respect to thickness throughout the area . In <br /> general , the thickness of this soil type is proportional to <br /> • the degree of slope; as the percent grade increases , the <br /> soil becomes thinner . The sandy loam contains some coarse <br /> sandstone fragments which are variable in size . Vegetation <br /> is abundant on this soil . It is brown to tan in color and <br /> is a typic cryorthent . <br /> SLf--Sandy loam soil over Mancos shale; greater <br /> degree of sandstone fragments than the SL soil ; this soil is <br /> quite similar to SL, but contains a greater concentration of <br /> sandstone fragments than does the SL soil . The dividing <br /> line between the two soil types appears to be a low ridge <br /> between the Dutch Creek No . 1 Mine and the L . S . Wood No . 3 <br /> mine . It is slightly shallower than the SL soil . <br /> SLa--Sandy loam over Morrison formation; this soil <br /> • is similar to SL and SLf but is found across the ridges and <br /> outside of the Coal Basin area . Vegetation is abundant . <br /> 2 <br />