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- Coal mines and mining--Canada--Maps1
- Coal mines and mining--Northwestern States--Maps1
- Counties--Michigan--Maps1
- Mines and mineral resources--Canada--Maps1
- Railroad land grants--North Dakota--Maps1
- Railroad land grants--Northwest, Pacific--Maps1
- Railroads--Canada--Maps6
- Railroads--Great Lakes (North America)--Maps1
- Railroads--Montana--Maps1
- Railroads--North Dakota--Maps1
- Railroads--Northwest, Pacific--Maps1
- Railroads--Northwestern States--Maps2
- Railroads--United States--Maps8
