OF-03-09 Geologic Map of the Greenland Quadrangle OF-03-09 Geologic Map of the Greenland Quadrangle, Douglas and El Paso Counties, Colorado
OF-03-06 Geologic Map of Black Forest Quadrangle OF-03-06 Geologic Map of Black Forest Quadrangle, El Paso County, Colorado
OF-03-08 Geologic Map of Falcon NW Quadrangle OF-03-08 Geologic Map of Falcon NW Quadrangle, El Paso County, Colorado
OF-02-02 Geologic Map of the Elsmere Quadrangle OF-02-02 Geologic Map of the Elsmere Quadrangle, El Paso County, Colorado
OF-02-04 Geologic Map of the Monument Quadrangle OF-02-04 Geologic Map of the Monument Quadrangle, El Paso County, Colorado
OF-02-15 Evaluation of Bottom-Hole Temperatures in the Denver and San Juan Basins of Colorado (detail) OF-02-15 Evaluation of Bottom-Hole Temperatures in the Denver and San Juan Basins of Colorado
OF-01-03 Geologic Map of the Pikeview Quadrangle OF-01-03 Geologic Map of the Pikeview Quadrangle, El Paso County, Colorado
OF-01-17 The Coalbed Methane Potential in the Upper Cretaceous to Early Tertiary Laramie and Denver Formations OF-01-17 The Coalbed Methane Potential in the Upper Cretaceous to Early Tertiary Laramie and Denver Formations, Denver Basin, Colorado
IS-50 Oil and Gas Fields of Colorado Statistical Summary through 1996 IS-50 Oil and Gas Fields of Colorado Statistical Summary through 1996