We were out driving on May Pond Road on April 4, when I spied an old bridge in the woods off of the road. We stopped and John explained how these are the ruins of an old mill race on May Brook. He even found the old road in the woods that was used to access the mill. Above you see the curved basin of the mill. Slabs of granite were laid on top of the race for another road, which you can see below. The last photo shows between the granite slabs on the road.