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Subject
- Railroads17
- Administrative and political divisions5
- Real property5
- Geology4
- Indian reservations3
- Land grants3
- Mines and mineral resources3
- Nautical charts3
- Postal service3
- Surveys3
- Description and travel2
- Indians of North America2
- Railroad land grants2
- Triangulation2
- Buildings1
- Cities and towns1
- Counties1
- Discoveries in geography1
- Discovery and exploration1
- Ferries1
