Appalachian Trail: North Adams (Eph's Lookout) to Harmon Hill & Bennington is a 4.5 mile out and back trail located near Williamstown, MA. The trail is only recommended for very experienced adventurers and primarily used for hiking. 4.5 miles 1371 feet Out & Back hiking Expand Map Sign up now to see this map! Reviews (0)Photos (17)Recordings (3)No one has reviewed this trail yet. Be the first!