SP-52 Messages in Stone: Colorado’s Colorful Geology (2nd Edition)

OF-08-02 Geologic Map of the Delta Quadrangle, Delta and Montrose Counties, Colorado

OF-07-03 Geologic Map of the Signal Peak Quadrangle, Gunnison County, Colorado

OF-06-04 Geologic Map of the Gunnison Quadrangle, Gunnison County, Colorado

OF-86-01 Coal Resources of the Dakota Sandstone, Southwestern Colorado