University of Connecticut geologist and author Robert Thorson will join the Bedford Historical Society and its co-sponsor, the Bedford Garden Club, and the public in the video streaming presentation on The History of New England’s Stone Walls. He will examine several images of these special Northeast treasurers and show what local “wall-watchers” might see that “bird-watchers” might not. The event is free and open to the public. This program is supported in part by a grant from the Bedford Cultural Council, a local agency which is supported by the Mass Cultural Council, a state agency.