The Housatonic River ( HOOS-ə-TON-ik) is a river, approximately 149 miles (240 km) long, in western Massachusetts and western Connecticut in the United States. It flows south to southeast, and drains about 1,950 square miles (5,100 km2) of southwestern Connecticut into Long Island Sound. Its watershed is just to the west of the watershed of the lower Connecticut River. Birds and fish who live in and around the river contain significant levels of PCBs and present health risks. Source: Wikipedia