San Adrián tunnel
E2024517
UNEXPLORED
San Adrián tunnel is a historic natural cave-passage in the Aizkorri massif of the Basque Country, long used as a key route through the mountains.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Adrián tunnel canonical | 1 |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.