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,~ iii iiiiiiiiiuuiii <br /> <br />Chase, C.H., and McConaghy, J.A., Generalized Surficial Geologic Map of <br />the Denver Area, Colorado: U.S. Geological Survey Map I-731. <br />Sampson, J.J., and Baber, T.C., 1974, Soil Survey of Adams County, Colorado: <br />• United States Department of Agriculture, Soil Conservation Service, <br />~ in Cooperation with the Colorado Agriculture Experiment Station. <br />Trimble, D.E., and Fitch, H.R., 1974, Map Showing Potential Sources of <br />Gravel and Crushed Rock Aggregate In the Greater Denver Area, Front <br />Range Urban Corridor, Colorado: U.S. Geological Survey Map I-856-A. <br />• <br />Trimble, D.E., and Hachette, M.N., 1979, Geologic Map of the Greater Denver <br />Area, Front Range Urban Corridor, Colorado: U.S. Geological Survey <br />Map I-856-H. ' <br />• <br />• <br />• <br />• <br />• <br />• <br /> <br /> <br />'~w <br />• <br />• <br />• <br />