Great Circle Trail (ME)
Located deep in the 100 mile wilderness, the Great Circle Trail is a recent project (finished in 2021) created by linking together a number of existing trails in the area, including the Turtle Ridge Loop, the Debsconeag Loop trail, a few sections of logging road and a small section on the AT. The loop has beautiful views of ponds and waterfalls throughout and offers a couple brief glimpses of nearby Katahdin.