Tunnel Brook
USFS trail 777
Trail facts
- Length
- 3.4 mi mapped
- Grade
- Typical grade 8 to 10%
- Surface
- snow
- Designation
- National trail designation
- National forest
- Green Mountain and Finger Lakes National Forests
Length is the trail as the Forest Service maps it, not a trip distance. Hike out and back and you will cover it twice; check the shape of the route before you count on the figure.
This record is a snapshot of U.S. Forest Service data retrieved on 2026-07-09. It does not reflect current closures, conditions, or seasonal orders. Check with the local ranger district before you go.