The Rattlesnake Knob Trail near Amherst, Masschusetts is a moderate 2.2-mile out-and-back hike from Bay Rd up to Rattlesnake Knob. The trail starts at the trailhead for the Amherst Water Tower Trail.
Follow the blue dot trail (Ken Cuddeback Trail) up and around the water tower. The blue dot merges to the M & M trail near the summit. Just before the summit, taking a left-hand turn heads to the lookout and the End/Start of the blue dot trail, taking a right-hand turn takes you to the visitors center.
This is a very laid back hike and with only one good, but short climb to a great view of Long Mountain.