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Michigan Mining School - Class of 1888, first graduating class

Education, Postsecondary Education, Education, Higher, Engineering, Metal Trade Michigan Mining School - Class of 1888 [First graduating class of institution later known as Michigan Technological University. Back row (left to right): James Benjamin Seager, John Luther Harris, Reginald Chapple Pryor, Edward Joseph Longyear. Front row (left to right): William John Uren, Samuel Alexander Parnall, William Edward Parnell.]

Scanned: March 16, 2006


Experimental Radio Station

Engineering, Historic Sites, Historic Mines, Metal Trade, Copper Industry and Trade Amateur Radio Station WSYX. [Image shows old radio station equipment in a small room.]

Scanned: June 13, 2013


Calumet and Hecla Mills and Reclamation Plant - Ahmeek Mill Gravity Flow Sheet

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, Ahmeek Mill - Gravity Flow Sheet [A line drawing which diagrams the process, equipment and flow of rock through the Ahmeek Mill.]

Scanned: January 11, 2006


Calumet and Hecla Mills and Reclamation Plant - Calumet Conglomerate Flow Sheet

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, Calumet Conglomerate Flow Sheet [A line drawing which diagrams the process, equipment and flow of rock through the Calumet mill and reclamation plant in Lake Linden.]

Scanned: January 11, 2006


Calumet and Hecla Mills and Reclamation Plant - Flotation Flow Sheet of Calumet and Hecla Conglomerate

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, Flotation Flow Sheet of Calumet and Hecla Conglomerate [A line drawing which diagrams the process, equipment and flow of rock through the Calumet mill and reclamation plant in Lake Linden.]

Scanned: January 13, 2006


Calumet and Hecla Mills and Reclamation Plant - Gravity Flow Sheet of Calumet and Hecla Reclamation Plant

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, Gravity Flow Sheet of Calumet and Hecla Reclamation Plant [A line drawing which diagrams the process, equipment and flow of rock through the Calumet mill and reclamation plant in Lake Linden.]

Scanned: January 13, 2006


Calumet and Hecla Mills and Reclamation Plant - Sands Model

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, Reclamation Sands [An interior of an office space showing a large model made of dowels inserted vertically into pegboard. The dowels are painted dark and light colors.]

Scanned: July 3, 2006


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