[Tunnel and Surface Map of Mineral Point Mine, near Osburn, Idaho]
Osburn, Id. 1930. Folding map, 27 x 42 inches. A couple of short separations along folds. Several contemporary pencil manuscript annotations. Light tanning and dust soiling. Scarce map of tunnels and several surface constructions related to the Mineral Point mine in Osburn, Idaho, operated by the Coeur D'Alene Mines Corporation..... More