OF-15-08 Geologic Map of the Lazear Quadrangle OF-15-08 Geologic Map of the Lazear Quadrangle, Delta County, Colorado
MI-63 Geologic Sections Across Colorado (Tweto) (detail) MI-63 Geologic Sections Across Colorado (Tweto)
OF-15-06 Geologic Map of the Crawford Quadrangle OF-15-06 Geologic Map of the Crawford Quadrangle, Delta and Montrose Counties, Colorado
MS-27 Surficial Geology and Geologic Hazards of the Douglas Pass-Baxter Region MS-27 Surficial Geology and Geologic Hazards of the Douglas Pass-Baxter Region, Rio Blanco and Garfield Counties, Colorado
MS-28 Location Map and Descriptions of Metal Occurrences in Colorado with Notes on Economic Potential (detail) MS-28 Location Map and Descriptions of Metal Occurrences in Colorado with Notes on Economic Potential
MS-29 Map Showing Potential Metal-Mine Drainage Hazards in Colorado MS-29 Map Showing Potential Metal-Mine Drainage Hazards in Colorado, Based on Mineral-Deposit Geology