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-19 The Coal Bed Methane Resources of Colorado (detail) MS-19 The Coal Bed Methane Resources of Colorado
MS-06 Energy Resource Development Map of Colorado (detail) MS-06 Energy Resource Development Map of Colorado
MS-21 Groundwater Temperatures Map of Colorado (detail) MS-21 Groundwater Temperatures Map of Colorado
MS-24 Metal Mining Activity Map of Colorado and Directory MS-24 Metal Mining Activity Map of Colorado and Directory, 1984