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Subject
- Copper mines and mining12
- History6
- Community life3
- Copper industry and trade3
- Economic conditions3
- Geology3
- History, Local3
- Mining camps3
- Social aspects3
- Social conditions3
- Frontier and pioneer life1
- Hobart, Henry, 1841-19201
- Industrial sites1
- Lake Superior Copper Company1
- Mines and mineral resources1
- Mining districts1
- St. Mary's Canal Mineral Land Company1
- Teachers1
- Weber, William Christian, 1853-19521