1. Topographic sheet, Montana (Silver Bow Co.) : Butte special map / Henry Gannett, chief topographer Creator: Geological Survey (U.S.) Published / Created: [1897] Call Number: 831cbf B98 1897 Container / Volume: BRBL_00581 Image Count: 1 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > Topographic sheet, Montana (Silver Bow Co.) : Butte special map / Henry Gannett, chief topographer ; E.M. Douglas, topographer in charge ; triangulation and topography by R.H. Chapman.