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

OF-08-18 Climax Quadrangle Geologic Map, Lake and Park Counties, Colorado

MS-35 Geologic Map of the Shoshone Quadrangle, Garfield County, Colorado

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

OF-07-06 Geologic Map of the Garo Quadrangle, Park County, Colorado

OF-06-09 Geologic Map of the Fairplay East Quadrangle, Park County, Colorado

OF-03-19 Geologic Map of the Manitou Springs Quadrangle, El Paso and Teller Counties, Colorado

OF-04-06 Geologic Map of the Cherry Valley School Quadrangle, Elbert, Douglas, and El Paso Counties, Colorado

OF-04-07 Geologic Map of the Dawson Butte Quadrangle, Douglas County, Colorado

OF-01-04 Geologic Map of the Basin Mountain Quadrangle, La Plata County, Colorado

OF-03-09 Geologic Map of the Greenland Quadrangle, Douglas and El Paso Counties, Colorado

OF-03-18 Geologic Map of the Cascade Quadrangle, El Paso County, Colorado