RS-48 Beach placer mineral deposits along localized paleoshorelines of the Western Interior Seaway RS-48 Beach Placer Mineral Deposits along Localized Paleoshorelines of the Western Interior Seaway, Upper Cretaceous Fox Hills Sandstone, Eastern Denver Basin, Colorado
OF-11-02 Geology of Upper Cretaceous OF-11-02 Geology of Upper Cretaceous, Paleocene and Eocene Strata in the Southwestern Denver Basin, Colorado
MS-49 Geologic Map and Coal Bed Stratigraphy MS-49 Geologic Map and Coal Bed Stratigraphy, Fruitland Formation, Western Archuleta County, Colorado
MS-40 Geologic Map of the Leon Quadrangle MS-40 Geologic Map of the Leon Quadrangle, Eagle and Garfield Counties, Colorado
RS-44 Geology and Mineral Resources of Saguache County RS-44 Geology and Mineral Resources of Saguache County, Colorado
B-53 Clastic Dikes Intruding Cretaceous Coals of Western Colorado B-53 Clastic Dikes Intruding Cretaceous Coals of Western Colorado
OF-97-05 Geologic Map and Coal Measures of the Axial Quadrangle OF-97-05 Geologic Map and Coal Measures of the Axial Quadrangle, Moffat, and Rio Blanco Counties, Colorado