HM-01-04 1877 Geologic Map of Colorado (Hayden) (detail) HM-01-04 1877 Geologic Map of Colorado (Hayden)
IS-21 Bibliography and Index of Colorado Geology IS-21 Bibliography and Index of Colorado Geology, 1983
OF-15-11 Geology and Groundwater Resources of Park County OF-15-11 Geology and Groundwater Resources of Park County, Colorado
OF-15-10 Geology and Groundwater Resources of Douglas County OF-15-10 Geology and Groundwater Resources of Douglas County, Colorado
MS-19 The Coal Bed Methane Resources of Colorado (detail) MS-19 The Coal Bed Methane Resources of Colorado
B-41 Bibliography and Index of Publications Related to Coal in Colorado: 1972-1977 B-41 Bibliography and Index of Publications Related to Coal in Colorado: 1972-1977
MS-06 Energy Resource Development Map of Colorado (detail) MS-06 Energy Resource Development Map of Colorado