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Surveying in Berkshire Mine

Education, Postsecondary Education, Education, Higher, Engineering, Natural Resources, Mines and Mineral Resources, Iron Mines and Mining Jigglin' In. Mine surveying in Iron Country.

Scanned: June 18, 2014


Calumet & Hecla Stamp Mill

Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Metal Trade, Copper Industry and Trade Calumet & Hecla Stamp Mills. Hecla Mill, Wash Room.

Scanned: September 10, 2014


Calumet & Hecla Stamp Mill

Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Metal Trade, Copper Industry and Trade Calumet & Hecla Stamp Mills, sand leaching plant.

Scanned: September 10, 2014


Calumet & Hecla Stamp Mill

Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Metal Trade, Copper Industry and Trade View of part of the Calumet & Hecla Stamps from Torch Lake, Hecla Sand Wheel House, W.W. Boiler House, Water Works, Hecla Mill, Co's Dock and Steamboat L'd'g.

Scanned: September 10, 2014


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 Stamp Mill

Engineering, Historic Sites, Historic Mines, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining Calumet and Hecla Stamp Mills, Head Foundation. Calumet Mill Heads No. 6, 7, 8, 9, 10 and 11.

Scanned: June 8, 2012


Calumet & Hecla Mining Company - Hecla Mill Drawings

Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Calumet & Hecla Mining Comany, Hecla Mill wash heads. Foundation walls and launders plan.

Scanned: September 9, 2014


Calumet & Hecla Mining Company - Plan & Evaluation of Machinery

Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Calumet & Hecla Mining Company Hecla Mill Heads No. 12 and No. 13, plan and elevation of machinery.

Scanned: September 9, 2014


Blue Print- Calumet and Hecla Electric Power Plant

Engineering, Historic Sites, Historic Mines, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining Calumet and Hecla Mining Company Electric Power Plant at Stamp Mills. Tunnel Details.

Scanned: June 8, 2012


Blue Print- Calumet and Hecla Electric Power Plant

Engineering, Historic Sites, Historic Mines, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining Calumet and Hecla Mining Company Electric Power Plant at Stamp Mills; Engine House Details in Various Scales.

Scanned: June 8, 2012