The town gained lands in the late 1930s as part of the building of the Quabbin Reservoir. The reservoir dammed the Swift River in the former town of Enfield, flooding the valley. Four towns—Enfield, Greenwich, Prescott and Dana—were disincorporated in 1938 by this building of the reservoir. Much of Enfield and Greenwich became part of the town of Ware, extending the town's lands northward. Today, the town is home to most of the Windsor Dam and its spillway, and the Goodnough Dike, both of which lie within the Quabbin Reservation. Ware's portion of this land is some of the most accessible land in the reservation, with a large lookout tower atop Quabbin Hill. Ware also bears the morbid distinction of being host to the Quabbin Park Cemetery, where most of the graves in the former towns were relocated to, as well as most of the town monuments.