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Subject
- Railroads22
- Administrative and political divisions4
- Streets4
- Indian reservations3
- Triangulation3
- Coasts2
- Description and travel2
- Indians of North America2
- Magnetic declination2
- Agriculture1
- Discovery and exploration1
- Geological surveys1
- Geology1
- Historical geography1
- Land grants1
- Landowners1
- Military reservations1
- Mines and mineral resources1
- Mining claims1
- Postal service1
