Mount Isolation via Glen Boulder Trail

HARD 11 reviews

Mount Isolation via Glen Boulder Trail is a 10.5 mile moderately trafficked out and back trail located near Gorham, New Hampshire that features a waterfall. The trail is rated as difficult and primarily used for hiking. Dogs are also able to use this trail but must be kept on leash.

10.5 miles
4914 feet
Out & Back

dogs on leash




wild flowers




15 days ago

Definitely strenuous and the black flies were vicious after 11am

23 days ago

What they don’t tell you about Isolation is that you have to scale 5,000ft up Washington and then back down 1.6 miles to get there. No complaints, though. A new favorite, huge views. If you want to stand at 5,500ft, it’s tempting to go the extra .6 to where the Boott Spur trail intersects, it’s worth it. I ended up making a loop by descending Boott Spur, which made for a very long hike including the diretissma back to the trailhead. Almost a 3-hour descent for the fittest hikers if you go this way. Black flies are relentless. It’s insane to look at the Washington summit so close and almost level, worth every step.

9 months ago

This was a beautiful hike that we did. We hiked up via the Boott Spur and made our way down to Mount Isolation. We ended up doing a traverse out through the Rocky Branch Trail. Overall this was a good hike with good views.

11 months ago

This hike was amazing. It is definitely challenging however worth every step.

14 days ago

Sunday, May 14, 2017