EG-12 Energy Resources of the Denver and Cheyenne Basins EG-12 Energy Resources of the Denver and Cheyenne Basins, Colorado: Resource Characteristics, Development Potential and Environmental Problems
RS-05 Coal Resources of the Denver and Cheyenne Basins RS-05 Coal Resources of the Denver and Cheyenne Basins, Colorado
MS-13 State Lands Status Map: Lands and Minerals Administered by Agencies of the Colorado Department of Natural Resources MS-13 State Lands Status Map: Lands and Minerals Administered by Agencies of the Colorado Department of Natural Resources
OF-78-06 Isopach Map of the Watkins Lignite Seam OF-78-06 Isopach Map of the Watkins Lignite Seam, Adams and Arapahoe Counties, Colorado and a Map Showing Extent of Alluvial Valley Floors and Overburden Thickness above the Watkins Lignite Seam, Adams and Arapahoe Counties, Colorado
OF-77-01 Preliminary Investigation and Feasibility Study of Environmental Impact of Energy Resource Development in the Denver Basin (detail) OF-77-01 Preliminary Investigation and Feasibility Study of Environmental Impact of Energy Resource Development in the Denver Basin
SP-05B Atlas of Sand SP-05B Atlas of Sand, Gravel, and Quarry Aggregate Resources, Colorado Front Range Counties