OF-90-02 Geology and Mineral Evaluation of Mineral Claims within the Snowmass Wilderness Area in the Vicinity of the Colorado-Highland Marble Quarry OF-90-02 Geology and Mineral Evaluation of Mineral Claims within the Snowmass Wilderness Area in the Vicinity of the Colorado-Highland Marble Quarry, Conundrum Creek, Pitkin County, Colorado
IS-25 Selected References on the Geology and Coal Resources of the Central and Western Colorado Coal Fields and Regions IS-25 Selected References on the Geology and Coal Resources of the Central and Western Colorado Coal Fields and Regions
SP-27 Scenic Trips into Colorado Geology: Uncompahgre Plateau; Montrose SP-27 Scenic Trips into Colorado Geology: Uncompahgre Plateau; Montrose, Ridgeway, Norwood, Naturita, Uravan, Gateway, Delta
MS-15 Map and Discovery of Permitted Colorado Coal Mines MS-15 Map and Discovery of Permitted Colorado Coal Mines, 1981
MS-05 Geology for Planning in the Redlands Area Mesa County MS-05 Geology for Planning in the Redlands Area Mesa County, Colorado