1. Economic geology of Gilpin county and adjacent parts of Clear Creek and Boulder counties, Colorado Author/Creator: Bastin, Edson S. 1878-1953, (Edson Sunderland), author Publication/Creation: Washington : Department of the Interior, United States Geological Survey, 1917 Resource Type: Book Access & Availability: Loading
2. Economic geology of Gilpin county and adjacent parts of Clear Creek and Boulder counties, Colorado, Author/Creator: Bastin, Edson S. 1878-1953. (Edson Sunderland) Publication/Creation: Washington : Govt. Print. Off, 1917 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 93-95. Access & Availability: Loading
3. Economic geology of the Georgetown quadrangle (together with the Empire district) Colorado Author/Creator: Spurr, Josiah Edward, 1870-1950 Publication/Creation: Washington : Govt. Print. Off, 1908 Resource Type: Book Access & Availability: Loading
4. Eocene climates, depositional environments, and geography, greater Green River basin, Wyoming, Utah, and Colorado Author/Creator: Roehler, Henry W., author Publication/Creation: Washington : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Book Access & Availability: Loading
5. Eocene glacial deposits in southwestern Colorado Author/Creator: Atwood, Wallace Walter, 1872-1949 Publication/Creation: Washington : G.P.O., 1915 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 93-95. Access & Availability: Loading
6. Eocene glacial deposits in southwestern Colorado Author/Creator: Atwood, Wallace Walter, 1872-1949, author Publication/Creation: Washington : Department of the Interior, United States Geological Survey, 1916 Resource Type: Book Access & Availability: Loading