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Purgatory Chasm State Reservation

A narrow chasm lined with boulders, fissures, caves, and short woodland trails turns geology into a physical route.

Purgatory Chasm State Reservation

Artwork inspired by George Loring Brown

A narrow chasm lined with boulders, fissures, caves, and short woodland trails turns geology into a physical route. The experience depends on body scale. Frost-split rock, glacial processes, named formations, and scrambled passages are felt through footing and confined space rather than viewed from a distant overlook.

Wear shoes made for boulders and skip the chasm floor when wet, icy, or beyond your mobility. A rim route offers context without every scramble, and children need close supervision. The main route is not accessible and includes drops, squeezing, and unstable footing. Pets and small children may be safer on rim trails.

Chasm length
About a quarter mile
Geology
Fractured bedrock and glacial action
Route
Scramble with rim alternatives

Quick guide

Test the first rocks
Turn back before commitment if footing fails.
Use the rim
A safer route still explains the landform.

Know before you go

Test the first rocks
Turn back before commitment if footing fails.
Use the rim
A safer route still explains the landform.
Keep hands free
Scrambling requires three points of contact.
Avoid wet stone
Traction changes immediately after rain.

Good to know

The main route is not accessible and includes drops, squeezing, and unstable footing. Pets and small children may be safer on rim trails.

Notice these

Official information

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