Date: | 1924 |
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Description: | The Blackstone Mine property and mining equipment. |
Date: | 02 23 2012 |
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Description: | Elevated view of the zinc mining operation, with snow on the ground. |
Date: | |
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Description: | A vintage view and a modern view of the zinc works site, presented as a pair. Views include industrial buildings and snow. |
Date: | 1909 |
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Description: | Exterior view of a diamond drill outfit on Presque Isle River. |
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