OF-18-01 Geologic Map of the Frederick Quadrangle OF-18-01 Geologic Map of the Frederick Quadrangle, Weld and Broomfield Counties, Colorado
RS-47 Reconnaissance of Potential Sand Sources in Colorado for Hydraulic Fracturing RS-47 Reconnaissance of Potential Sand Sources in Colorado for Hydraulic Fracturing
OF-14-09 Geologic Map of the Whitewater Quadrangle OF-14-09 Geologic Map of the Whitewater Quadrangle, Mesa County, Colorado
MS-36 Geologic Map of the Carbondale Quadrangle MS-36 Geologic Map of the Carbondale Quadrangle, Garfield County, Colorado
MS-37 Geologic Map of the Cottonwood Pass Quadrangle MS-37 Geologic Map of the Cottonwood Pass Quadrangle, Eagle and Garfield Counties, Colorado
MS-38 Geologic Map of the Glenwood Springs Quadrangle MS-38 Geologic Map of the Glenwood Springs Quadrangle, Garfield County, Colorado
MS-39 Geologic Map of the Basalt Quadrangle MS-39 Geologic Map of the Basalt Quadrangle, Eagle, Garfield, and Pitkin Counties, Colorado
MS-40 Geologic Map of the Leon Quadrangle MS-40 Geologic Map of the Leon Quadrangle, Eagle and Garfield Counties, Colorado
MS-35 Geologic Map of the Shoshone Quadrangle MS-35 Geologic Map of the Shoshone Quadrangle, Garfield County, Colorado
MS-41 Geologic Map of the Mount Sopris Quadrangle MS-41 Geologic Map of the Mount Sopris Quadrangle, Garfield and Pitkin Counties, Colorado