Martine, W. J.2017-08-222022-02-032017-08-222022-02-03https://hdl.handle.net/11124/171472Mine report no. 78.Includes map."Report furnished by Courtesy of W.J. Martine, E.M."Typescript carbon.reportsengIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Mines and mineral resources -- Colorado -- Gilpin CountyMining claims -- Colorado -- Gilpin CountyOpera Lode (Colo.)Gamble Gulch Mining District (Colo.)Perigo Mining District (Colo.)Text