Browse Subjects

Thumbnail Subject(s) Description Add to Shoebox

Calumet and Hecla Mining Co. Drawing

Natural Resources, Mines and Mineral Resources, Manufacturing Process, Mills and Millwork, Engineering Calumet & Hecla Consolidated Copper Co. Single Line 13KV System Diagram. [Electric system based out of the Lake Linden Power Plant.]

Scanned: July 11, 2013


Calumet and Hecla Mining Co. Drawing

Natural Resources, Mines and Mineral Resources, Manufacturing Process, Mills and Millwork, Engineering Calumet and Hecla Consolidated Copper Company 13200 Volt - Electric Distribution System. [This blue print shows how power was distributed from the turbo generators housed at the Lake Linden Power Plant to several different C&H buildings. Such buildings include: the Mutual Pump Station, the Tamarack Reclamation Sub-station, the coal dock sub-station, water works buildings, Cliff and Phoenix.]

Scanned: July 11, 2013


Calumet and Hecla Mining Co. Drawing

Natural Resources, Mines and Mineral Resources, Manufacturing Process, Mills and Millwork, Engineering Calumet and Hecla Consolidated Copper Company. Drawing of 13200 Volt Transmission Line for Mine.

Scanned: July 11, 2013