Instead of bagging another high point, today we took an off day and visited the mysterious Upton Chamber in Upton, Massachusetts. This dry-masonry chamber, built by simply stacking rocks, consists of a roughly 14ft long entrance tunnel ending in a stone dome rising approximately 12ft from the floor.

The Upton Chamber is accessed by heading to Upton, Massachusetts and either parking at the VFW or a nearby restaurant on Milford St., or the one-car space before the gate on Elm Street. Heritage park is about a six minute walk from Milford St.

After entering the park, pass the wooden shed, built by Boy Scouts using trees blown over in Hurricane Sandy, and immediately turn right and head towards the stone walls in the woods. There is a path worn to the Chamber, so it's hard to miss when you're in the right area.

The day we visited, melting snow and recent rains combined to flood the entire chamber, and a portion of the entrance tunnel, to a depth of about 6 to 7 inches. Previous visitors had kindly left some large branches we were able to balance across to keep our feet dry, and using the walls of the tunnel were able to achieve the entrance to the chamber.

Although no artifacts were ever recovered from the Chamber, theories of its construction range from the 1350s through 1625 with attribution to various masons from the local Nipmuc tribe through early European settlers.

Recommended Gear
Flashlights are a must in the chamber
Waders or tall boots