Browse Subjects

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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


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


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


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


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


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


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


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


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


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