The Brigham Pond Dam, forming a pond of the same name, first impounds the West Branch of the Ware River in Hubbardston. The East Branch of the River originates from Bickford Pond in Hubbardston, near the adjoining town of Princeton. Much of Hubbardston lies within the Ware River watershed and feeds tributaries of the Ware and Millers rivers, the Millers River running generally west, and the Ware River running generally southwest. The Ware River is part of the Massachusetts Water Resources Authority drinking water system serving the greater Boston area. There is also a flood control dam on the Ware River in Hubbardston and Barre. This dam was constructed by and is maintained by the US Army Corps of Engineers. Large sections of the Ware River Watershed are owned and/or maintained by the Massachusetts Department of Conservation and Recreation including 22,000 acres in the vicinity of the dam.