ElevationAscent: 1,894' 577 m
Descent: -3' -1 m
High: 3,099' 945 m
Low: 1,209' 368 m
GradeAvg Grade: 19% (11°)
Max Grade: 51% (27°)
Current trail conditions
Popular runs nearby
Mount Greylock Summit Loop
6.6 mi 10.6 km • Loop • 2,252 ft Ascent 686.53 m Ascent
Singletrack Adams, MA( 8 )
2.7 mi 4.3 km • Out and Back • 894 ft Ascent 272.42 m Ascent
Singletrack Lenox, MA( 4 )
Navigate on-trail with our free app
Run this trail?
Add details to help others plan their adventure.
“A steep trail that has been re-opened to skiing.”— David Smith
At Roost Trail, the Thunderbolt Trail tread changes from a road to a trail, and turns right. It ascends up to the Bucket Trail. Here, the unnamed trail comes in from the right. The trail ascends, steeply, to the intersection with the Bellows Pipe Trail, then takes a short right. It takes a left back up the hill, then reaches David's Pass (on the left).
The trail ends at the junction with the AT. Take the AT (left) to reach Greylock's summit, or (right) to North Adams.
Land Manager: MA DCR - Mt. Greylock State Reservation