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Calumet & Hecla - North Flotation Plant

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Buildings North Flotation Plant and Sand Leaching Plant, Lake Linden, MI. [Building appears to be under construction.]

Scanned: October 13, 2009


Calumet & Hecla - Sand Leaching Plant

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Buildings Sand Leaching Plant - Lake Linden, MI

Scanned: October 13, 2009


Calumet & Hecla - Sand Leaching Plant

Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Buildings Sand Leaching Plant - Lake Linden, MI

Scanned: October 13, 2009


Calumet and Hecla

Buildings, Metal Trade, Copper Industry and Trade, Manufacturing Process, Mills and Millwork C & H Ahmeek Mill [Interior view of the mill and machinery.]

Scanned: January 5, 2010


Calumet and Hecla

Buildings, Metal Trade, Copper Industry and Trade, Manufacturing Process, Mills and Millwork C & H Ahmeek Mill [Interior view of the mill and machinery.]

Scanned: January 5, 2010


Calumet and Hecla

Manufacturing Process, Mills and Millwork, Buildings, Isle Royale Mill [Interior view of the mill.]

Scanned: January 5, 2010


Calumet and Hecla

Manufacturing Process, Mills and Millwork, Buildings, Persons Isle Royale Mill [A man dressed in a suit, looks over some of the equipment at the mill.]

Scanned: January 5, 2010


Calumet and Hecla

Manufacturing Process, Mills and Millwork, Buildings, Isle Royale Mill [Interior view of the mill showing another phase of the milling process.]

Scanned: January 5, 2010


Calumet and Hecla

Manufacturing Process, Mills and Millwork, Buildings, Isle Royale Mill [Interior view of the mill.]

Scanned: January 5, 2010


Calumet and Hecla

Manufacturing Process, Mills and Millwork, Buildings, Isle Royale Mill [Interior view of the mill.]

Scanned: January 6, 2010