A unique natural landmark, Purgatory Chasm runs for a quarter of a mile between granite walls rising as high as 70 feet. Popular with picnickers and rock-climbers alike, the Chasm is believed to have its origin in the sudden release of dammed-up glacial meltwater near the end of the last Ice Age, approximately 14,000 years ago.
Trails lead to a wide variety of rock formations, with such romantic names as The Corn Crib, The Coffin, The Pulpit, Lovers' Leap and Fat Man's Misery.Fun with the Family The deep chasm is a dramatic sight and a nice spot to hike any time of year, but in the summer the cool, damp air is especially pleasant. A marked path leads down the series of ravines that form the chasm. NOTE: This path is steep in spots and isn’t appropriate for children under 10 unless they are experienced hikers. There are numerous picnic spots in the reservation, as well as a good playground area and a short marked path through the woods that’s more appropriate for younger kids.