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Subject
- History10
- Rivers10
- Description and travel3
- Inland navigation3
- Cities and towns2
- Discovery and exploration2
- Frontier and pioneer life2
- Geopolitics2
- Indians of North America2
- National parks and reserves2
- Navigation2
- Railroads2
- Ranching2
- Caddo Indians1
- Canals1
- Central-local government relations1
- Civil engineering1
- Costs1
- Creek Indians1
- Design and construction1