Showing Collections: 1 - 2 of 2
Printed letter for general circulation describing recent mining and milling activities, with reference to names of specific mines and mills. The collection contains material from 1912 created by the Manhattan Chamber of Mines.
Drawings of the forty-foot level shafts and of the layout of tunnels one and two of the Keystone Workings mine in Manhattan, Nevada. The collection contains material from Keystone Workings mine; this includes drawings and prints of the mine shaft system.