Some 2 km long system of tunnels in the depth reaching up to 30 m where approximately 60 families lived during the Vietnam War in 1967 – 1972.
| Location, GPS coordinates: | 17.0743 N 107.1102 E |
| Categories: | Rural settlements, Tunnels |
| Values: | History, Visual, Architecture |
| Rating: |  (3.5 / 5) |
| Where is located? | Asia, Vietnam, North Central Coast, Quảng Trị Province, Quảng Trị |
