One of the sites I visited with the Wayne County Gem and Mineral Club during the June Massachusetts trip was the large dump beside the Quabbin Aqueduct shaft #10 in Hardwick, Massachusetts. The 25 mile aqueduct connecting the Quabbin Reservoir to Boston was completed in 1939 and has been a primary source of water for the Boston region ever since. Rocks excavated from the #10 shaft include the Hardwick granite, the Monson gneiss, and a number of other metamorphic rocks. The dump is expansive and although it is becoming overgrown it remains a popular site for mineral collectors.