Date: | 1836 |
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Description: | This early to mid-19th century map shows the township and range system, sections, landownership, furnaces, lead mines, copper mines, and roads in the vicin... |
Date: | 1895 |
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Description: | Outdoor group portrait of the miners who work at Optimal Mine. They are seated outdoors on the grass, and are wearing work clothes and hats. |
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