Mill River (Northampton, Massachusetts)
Tributary of the Connecticut River in Hampshire County, Massachusetts, USA / From Wikipedia, the free encyclopedia
The Mill River is a 13.5-mile-long (21.7 km)[1] tributary of the Connecticut River arising in the western hilltowns of Hampshire County, Massachusetts. It is notable for dropping in elevation, along with its West Branch, more than 700 feet (210 m) over 15 miles (24 km).