OF-04-08 Geological Map of the La Valley Quadrangle OF-04-08 Geological Map of the La Valley Quadrangle, Costilla County, Colorado
OF-03-15 Geologic map of the Taylor Ranch Quadrangle OF-03-15 Geologic map of the Taylor Ranch Quadrangle, Costilla County, Colorado
RS-37 Geology and Mineral Resources of Gunnison County RS-37 Geology and Mineral Resources of Gunnison County, Colorado
OF-91-01 Identification and Remediation of a Mine Flooding Problem OF-91-01 Identification and Remediation of a Mine Flooding Problem, Rico, Dolores County, Colorado with Discussion of the Use of Tracer Dyes
OF-91-02 The Use of Tracer Dyes for the Identification of a Mine Flooding Problem OF-91-02 The Use of Tracer Dyes for the Identification of a Mine Flooding Problem, Rico, Dolores County, Colorado
RS-21 Precambrian Tungsten and Copper-Zinc Skarn Deposits of South-Central Colorado RS-21 Precambrian Tungsten and Copper-Zinc Skarn Deposits of South-Central Colorado