OF-21-02 Geologic Map of the Valley View School Quadrangle OF-21-02 Geologic Map of the Valley View School Quadrangle, Weld County, Colorado
OF-19-03 Geologic Map of the La Salle Quadrangle OF-19-03 Geologic Map of the La Salle Quadrangle, Weld County, Colorado
OF-15-12 Geologic Map of the Piney Creek Quadrangle OF-15-12 Geologic Map of the Piney Creek Quadrangle, Arapahoe, Douglas, and Elbert Counties, Colorado
OF-14-12 Geologic Map of the Craig Quadrangle OF-14-12 Geologic Map of the Craig Quadrangle, Moffat County, Colorado
OF-14-07 Geologic Map of the Watkins SE Quadrangle OF-14-07 Geologic Map of the Watkins SE Quadrangle, Arapahoe and Elbert Counties, Colorado
OF-14-15 Geologic Map of the Hotchkiss Quadrangle OF-14-15 Geologic Map of the Hotchkiss Quadrangle, Delta County, Colorado
OF-14-01 Geologic Map of the Cabin Gulch Quadrangle OF-14-01 Geologic Map of the Cabin Gulch Quadrangle, Elbert County, Colorado
OF-12-05 Geologic Map of the Falcon Quadrangle OF-12-05 Geologic Map of the Falcon Quadrangle, El Paso County, Colorado
OF-12-04 Geologic Map of the Elbert Quadrangle OF-12-04 Geologic Map of the Elbert Quadrangle, Elbert and El Paso Counties, Colorado
OF-12-03 Geologic Map of the Eastonville Quadrangle OF-12-03 Geologic Map of the Eastonville Quadrangle, Elbert County, Colorado
SP-52 Messages in Stone: Colorado's Colorful Geology (2nd Edition) SP-52 Messages in Stone: Colorado’s Colorful Geology (2nd Edition)