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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


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


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


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


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


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


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


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


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


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