Purgatory Brook Trail is a hiking trail in Hillsborough County, New Hampshire. It is 2.4 miles long and begins at 322 feet altitude. Traveling the entire trail is 4.9 miles with a total elevation gain of 631 feet. The Lower Purgatory Falls Parking is near the trailhead. The Purgatory Reservation wood can be seen along the trail. There is also a wetland along the trail.
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