Spatial Coverage
- Chesapeake Bay Region (Md. and Va.)1
- Chickahominy River (Va.)1
- Colorado.1
- Connecticut River1
- Constantine (Algeria)1
- Delaware1
- Delaware Bay Region (Del. and N.J.)1
- England1
- Europe, Central1
- Fort Jackson (La.)1
- Fort Monroe (Virginia)1
- France1
- Gibraltar, Strait of1
- Gilpin County1
- Iowa1
- Kennebec River (Me.)1
- London1
- Louisiana1
- Maine1
- Maryland.1
