| Thumbnail | Subject(s) | Description | Add to Shoebox |
|---|---|---|---|
|
Blue Print- Calumet and Hecla Electric Power Plant |
Engineering, Historic Sites, Historic Mines, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining |
Calumet and Hecla Mining Company Electric Power Plant at Stamp Mills; Engine House Details in Various Scales. Scanned: June 8, 2012 |
|
|
Blue Print- Calumet and Hecla Electric Power Plant |
Engineering, Historic Sites, Historic Mines, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining |
Calumet and Hecla Mining Company Electric Power Plant at Stamp Mills; Basement drains. Scanned: June 8, 2012 |
|
|
Blue Print- Calumet and Hecla Electric Power Plant |
Engineering, Historic Sites, Historic Mines, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining |
Calumet and Hecla Mining Company Electric Power Plant at Stamp Mills; arrangement of piping. Scanned: June 8, 2012 |
|
|
Blue Print- Calumet and Hecla Electric Power Plant |
Engineering, Historic Sites, Historic Mines, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining |
Calumet and Hecla Mining Company Electric Power Plant at Stamp Mills; General elevations of engine house. Scanned: June 8, 2012 |
|
|
Quincy Regrinding Plant- Sub Station |
Historic Sites, Historic Mines, Metal Trade, Copper Industry and Trade, Copper Mines and Mining, |
Quincy Regrinding Plant- Sub Station, Floor and Transformer Piers Scanned: November 26, 2014 |
|
|
Quincy Regrinding Plant- Wiring Diagram |
Historic Sites, Historic Mines, Metal Trade, Copper Industry and Trade, Copper Mines and Mining, |
Quincy Regrinding Plant- Wiring Diagram Scanned: November 26, 2014 |
|
|
Outline- Transformer Outdoor |
Historic Sites, Historic Mines, Metal Trade, Copper Industry and Trade, Copper Mines and Mining, |
Quincy Reg. Plant Substation- Transformers Scanned: November 26, 2014 |
|
|
Proposed Turbine Building |
Historic Sites, Historic Mines, Metal Trade, Copper Industry and Trade, Copper Mines and Mining, |
Proposed Turbine Building Scanned: November 26, 2014 |
|
|
Quincy Mill Sands- Copper Content |
Historic Sites, Historic Mines, Manufacturing Process, Mills and Millwork, Metal Trade, Copper Industry and Trade, Copper Mines and Mining |
Quincy Mining Co. Hancock, Mich.- Quincy Mill Sands Copper Content Scanned: November 26, 2014 |
|
|
Quincy Mill Plat |
Historic Sites, Historic Mines, Manufacturing Process, Mills and Millwork, Metal Trade, Copper Industry and Trade, Copper Mines and Mining |
Quincy Mill Plat Scanned: November 26, 2014 |