 Detailed shot of northbound entrance | |
| Overview | |
|---|---|
| Official name | Big Walker Mountain Tunnel |
| Location | Bland County, Virginia, USA |
| Coordinates | 37°2′19″N 81°7′51″W / 37.03861°N 81.13083°W |
| Route |  I-77 |
| Operation | |
| Opened | 1972 |
| Toll | None |
| Technical | |
| Length | 4,229 ft (1,289 m) |
| No. of lanes | 4 |
The Big Walker Mountain Tunnel is a vehicular tunnel in the Appalachian Mountains of Southwest Virginia that carries Interstate 77 through and under Big Walker Mountain. It is located a few miles south of the town of Bland in Bland County and a segment of the Appalachian Trail, and about 20 miles (32 km) south of its longer cousin, the East River Mountain Tunnel.