Potomac River fortifications
E1743987
UNEXPLORED
Potomac River fortifications are a network of defensive military installations built along the Potomac River, primarily to protect Washington, D.C., from naval and land attacks.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Potomac River fortifications canonical | 1 |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.