1. Map of property of the Globe Copper Company and mines in the Portage Lake District. Creator: J.O. Seymour & Co Published / Created: [ca. 1870] Call Number: 811gfc P831 1870 Container / Volume: BRBL_00554 Image Count: 1 Resource Type: Maps, Atlases & Globes Subject (Topic): Copper mines and mining--Michigan Found in: Beinecke Rare Book and Manuscript Library > Map of property of the Globe Copper Company and mines in the Portage Lake District.
2. Map of property of the Globe Copper Company and mines in the Portage Lake District. Creator: J.O. Seymour & Co Published / Created: [ca. 1870] Call Number: 811gfc P831 1870 Container / Volume: BRBL_00554 Image Count: 1 Resource Type: Maps, Atlases & Globes Subject (Topic): Copper mines and mining--Michigan Found in: Beinecke Rare Book and Manuscript Library > Map of property of the Globe Copper Company and mines in the Portage Lake District.