SP-05A Sand, Gravel, and Quarry Aggregate Resources, Colorado Front Range Counties

Sand, gravel, and quarry aggregate resources, Colorado Front Range counties. 43 pages. 3 plates (1:250,000). 11 figures. 2 tables. Digital PDF download. See SP-05B for more info. SP-05AD

Author: S.D. Schwochow, R.R. Shroba and P.C.Wicklein
Status: Digital
Year: 1974


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