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- Beinecke Rare Book and Manuscript Library✖[remove]1
- Copper mines and mining1
- Copper mines and mining--Michigan--Keweenaw County--Maps.1
- Landowners1
- Landowners--Michigan--Keweenaw County--Maps.✖[remove]1
- Mines and mineral resources1
- Mines and mineral resources--1
- Delaware Mining Company of Michigan--Maps.1
- Friend, Norman M., approximately 1815-✖[remove]1
- Pennsylvania Mining Company of Michigan--Maps.1
- Rickard, Richard H.,---1885--Ownership.✖[remove]1
Current results range from 1859 to 1889