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
RS-01 Geology of Rocky Mountain Coal: A Symposium RS-01 Geology of Rocky Mountain Coal: A Symposium, 1976
OF-76-01 Active/Licensed Coal Mines of Colorado (detail) OF-76-01 Active/Licensed Coal Mines of Colorado
OF-75-03 Mineral Resources Maps of Moffat County OF-75-03 Mineral Resources Maps of Moffat County, Colorado
EG-09 Coal Mine Subsidence and Land Use in the Boulder-Weld Coalfield: Boulder and Weld Counties EG-09 Coal Mine Subsidence and Land Use in the Boulder-Weld Coalfield: Boulder and Weld Counties, Colorado