OF-78-08 Location Map of Drill Holes Used for Coal Evaluation in the Denver and Cheyenne Basins, Colorado

Location map of drill holes used for coal evaluation in the Denver and Cheyenne Basins. (See also RS-05.) 1 plate (1:250,000). Digital PDF download. OF-78-08D

Author: Kirkham, Robert M. “OF-78-08 Location Map of Drill Holes Used for Coal Evaluation in the Denver and Cheyenne Basins, Colorado.” Coal Resources, 1:250,000. Open File Report. Denver. CO: Colorado Geological Survey, Department of Natural Resources, 1978.
Status: Digital
Year: 1978

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