![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/d6c66f59-39b4-4f1a-9689-cb008976401a?itok=R2QrZYhO)
Calumet & Hecla - Lake Chemical Company |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, |
[Photo of 50 pound bags of Copper Hydrate being filled. The bags state it is a technical grade of cupric hydraoxide manufactured by the Lake Chemical Co. of Calumet, MI.]
Scanned: September 22, 2009 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/86b856e3-88f2-4c37-ae61-87353da7423f?itok=70J4AIie)
Calumet & Hecla - Lake Chemical Company |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, |
[Photo of 50 pound bags of Copper Hydrate being stored in a warehoue type of setting.]
Scanned: September 22, 2009 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/19536f5a-07c5-4cbf-9dfa-528705a850c0?itok=JZoHpCK0)
Calumet & Hecla - Lake Chemical Company |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manufacturing Process, |
[A worker operates a piece of machinery that may be an evaporator?]
Scanned: September 22, 2009 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/7e41b49c-4c19-4c4e-8630-8c995a6e07e6?itok=9gwUQU8A)
Centennial #6 Construction |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, , |
Poor rock bin at No. 6, 5/6/54 [A photo of the concrete base and poor rock bin of the Centennial No. 6 shaft-rockhouse. Two men and a crane are visible positioning the mass copper chute into place.]
Scanned: March 2, 2006 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/b772940a-d18a-4d62-b4ca-781860d4a251?itok=n_INY06N)
Osceola #13 |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, , |
Osceola #13, 9/23/63 [A photo of two men unloading the rock bin into a severly overload Chevy truck. A sign in the background says "The Best Safety Device is a Careful Worker"]
Scanned: March 2, 2006 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/cc616afe-1b28-4208-b1c0-f754e58e18a4?itok=-00opMmy)
Calumet & Hecla - Osceola #6 |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, , |
Blasting of stamp shoes Osceola #6.
Scanned: September 23, 2009 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/a160adcb-c9f7-4e79-a01b-52e1a863bf90?itok=hTb-dQ0K)
Calumet & Hecla - Osceola #6 |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Buildings, Persons |
Osceola #6 [Exterior view of the mine. A man in a suit walks along the railroad tracks.]
Scanned: September 23, 2009 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/3aa686d6-38a8-4e9d-937d-a301886bcee8?itok=hGaBsiif)
Calumet & Hecla - Osceola #13 |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Buildings, |
Osceola #13 [Exterior view of the shafthouse and surrounding buildings.]
Scanned: September 23, 2009 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/54931f37-00a5-45b6-b770-22a1d31cc6ee?itok=j7wzL03O)
Calumet & Hecla - Osceola |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Manpower, Labor, Skilled Labor, Miners, Copper Miners |
Osceola Valve - Dewatering Project [A miner inspects the now exposed valve.]
Scanned: September 23, 2009 |
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![](https://cchi.mtu.edu/system/files/styles/archives_watermark_thumbnail/private/914d477b-1d25-418e-b9d3-8c0fda8b16ce?itok=Nk0giUjK)
Quincy Reclamation Plant |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Buildings, Water |
Shore Plant and Belt Conveyor Gallery
Scanned: September 23, 2009 |
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