Hamilton Reservoir is located in the Town of Holland, Massachusetts. Holland is located in south, central Massachusetts bordering Union, Connecticut. In the 1860's the Hamilton Woolen Company dammed the Quinebaug River and formed the Hamilton Reservoir. The Reservoir is located in the headwater region of the Quinebaug River watershed which flows north through the town and combines with the French and Middle Rivers to form the Thames River in Connecticut.
Friends of HRA, Inc. (FHRA) is a 501 (c) (3) Public Charity, formerly known as the Hamilton Reservoir Association. The purpose of the Corporation is exclusively for charitable and/or educational purposes. The FHRA works to raise funds for the maintenance & preservation of Hamilton Reservoir, including public safety, environmental integrity & its’ conservation.