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Hecla Stamp Mill |
Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Metal Trade, Copper Industry and Trade |
Hecla Stamp Mill. [Image shows Calumet & Hecla Mining Company's Hecla Mill. Scanned: September 10, 2014 |
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Electrolytic Plant Trusses |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Calumet and Hecla Mining Company Electrolytic Plant, detail of the trusses. Designed by Worden Allen Company; Chicago, Milwaukee, Houghton. [Engineering Drawing] Scanned: June 15, 2012 |
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Electrolytic Plant Gurders, Roof Beam and Detail |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Calumet and Hecla Mining Company Electrolytic Plant, roof beam and detail. Designed by Worden Allen Company; Chicago, Milwaukee, Houghton. [Engineering Drawing] Scanned: June 15, 2012 |
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Electrolytic Plant Engineering Drawings- Struts and Bracing |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Worden- Allen Company drawings for the Calumet and Hecla Minng Company's Electrolytic Plant. This drawing focuses on the struts and bracing of the plant. Scanned: June 19, 2012 |
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Electrolytic Plant Engineering Drawings- Bracing and Rafters |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Worden- Allen Company drawings for the Calumet and Hecla Minng Company's Electrolytic Plant. This drawing focuses on the bracing and rafters of the plant. Scanned: June 19, 2012 |
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Electrolytic Plant Engineering Drawings- Crane Girders and Braces |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Worden- Allen Company drawings for the Calumet and Hecla Minng Company's Electrolytic Plant. This drawing focuses on the crane girders and braces. Scanned: June 19, 2012 |
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Electrolytic Plant Engineering Drawings- Struts and Roof Bracing |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Worden- Allen Company drawings for the Calumet and Hecla Minng Company's Electrolytic Plant. This drawing focuses on the struts and roof bracing. Scanned: June 19, 2012 |
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Electrolytic Plant Section Drawings |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Calumet and Hecla Mining Company Electrolytic Plant Section Drawings. Designed by Worden Allen Company; Chicago, Milwaukee, Houghton. Scanned: June 15, 2012 |
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Electrolytic Plant Monitor Posts |
Metal Trade, Copper Industry and Trade, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, |
Calumet and Hecla Mining Company Electrolytic Plant, detail of monitor posts. Designed by Worden Allen Company; Chicago, Milwaukee, Houghton. Scanned: June 15, 2012 |
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MTU - Students |
Education, Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining |
Students examine the float copper dsplayed on the Michigan Tech campus. Specimans such as the one shown and the Ontonagon Boulder (also float copper) were evidence of the potential of copper mining in the area. The mining of copper and iron ore led to the need for a mining school. [Michigan Tech Centennial Page 239] Scanned: May 18, 2009 |