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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 |
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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 |
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Old C & H Mills |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Mills and Millwork, Buildings |
Old C & H mills. [Expansive view of milling operations and surrounding buildings.] Scanned: January 20, 2010 |
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Old C & H Mills |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Mills and Millwork, Buildings |
Old C & H mills. [View of milling operations and surrounding buildings.] Scanned: January 20, 2010 |
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Old C & H Mills |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Mills and Millwork, Buildings |
Old C & H mills. [View of milling operations and surrounding buildings.] Scanned: January 20, 2010 |
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Calumet & Hecla Stamp Mills |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Buildings, Manufacturing Process, Mills and Millwork |
Calumet & Hecla stamp mills, boilers, automatic stokers. [Image looks down a runway between two banks of machinery in a C&H stamp mill.] Scanned: September 10, 2014 |
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Stamp Mills - Ahmeek |
Manufacturing Process, Mills and Millwork, Metal Trade, Copper Industry and Trade, Copper Mines and Mining, |
Ahmeek Mills, Feeders Floor [Interior view of the mill feeders floor] Scanned: November 28, 2007 |
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Stamp Mills - Ahmeek |
Manufacturing Process, Mills and Millwork, Metal Trade, Copper Industry and Trade, Copper Mines and Mining, |
Ahmeek Mills, Pumping Plant [Interior view of the machinery located in the pumping plant area.] Scanned: November 28, 2007 |
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Calumet and Hecla |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Mills and Millwork, Manpower, Labor |
Jigs, Screens and Tables, Calumet-Hecla Mills, Lake Linden, Mich. [Two men are pictured in the maze of posts and pillars - one is a worker the other wears a suit.] Scanned: December 15, 2009 |
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Calumet and Hecla |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, Manpower, Labor |
Separating pure copper by means of electric current. Calumet-Hecla Electrolytic Plant, Lake Linden, Mich. [An impressive operation showing some of the workers.] Scanned: December 15, 2009 |