1. Map of a portion of Point Keweenaw, L.S. : showing the lands &c. of the Pennsylvania & Delaware Published / Created: [1859?] and [between 1880 and 1889?] Call Number: BrSides Folio 2018 138 Image Count: 1 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > Map of a portion of Point Keweenaw, L.S. : showing the lands &c. of the Pennsylvania & Delaware Mining Co's.
2. [Photographs of the Black Butte Mine]. Published / Created: [1910-1920] Call Number: WA Photos 1233 Container / Volume: Box (Oversize) Image Count: 26 Resource Type: still image Found in: Beinecke Rare Book and Manuscript Library > [Photographs of the Black Butte Mine].