Subjects
- Canals[remove]12
- Dams2
- Inland navigation2
- Rivers and river valleys.2
- Transportation2
- Virginia -- James River and Kanawha Canal2
- Aqueducts1
- Canal aqueducts1
- Canals -- Associations, institutions, etc1
- Canals -- United States -- Bibliography1
- Canals -- United States -- History1
- Canals -- United States -- History -- Periodicals1
- Canals -- United States -- Maps1
- Cast-iron1
- Cement1