Thunder Gulch Trail
Acadia National Park
This trail wasn’t even on our radar when we arrived on Isle au Haut. Why not? Simply because it’s not on any maps, so we didn’t know about it. I did find it on a USGS topo map, but it’s not on any published park maps. The trail is maintained occasionally, but it’s off the beaten path and takes time to get to. The trail is 1.8 miles out-and-back from the trailhead, but it takes 2.4 miles along an unpaved…