Housatonic River

Housatonic River
The Housatonic River in Cornwall
Housatonic River watershed
Location
CountryUnited States
StateConnecticut, Massachusetts
CountiesFairfield, CT, Litchfield, CT, New Haven, CT, Berkshire, MA
CityPittsfield, MA
Physical characteristics
SourceConfluence of West and East Branches Housatonic River
  locationPittsfield, Berkshire County, Massachusetts, United States
  coordinates42°26′01″N 073°15′03″W / 42.43361°N 73.25083°W / 42.43361; -73.25083
  elevation959 ft (292 m)
MouthLong Island Sound
  location
Stratford, Fairfield County, Connecticut, United States
  coordinates
41°10′09″N 073°06′30″W / 41.16917°N 73.10833°W / 41.16917; -73.10833
  elevation
0 ft (0 m)
Length149 mi (240 km)
Basin size1,948 sq mi (5,050 km2)
Discharge 
  locationStratford/Milford, CT
  minimum54 cu ft/s (1.5 m3/s)
  maximum48,600 cu ft/s (1,380 m3/s)
Discharge 
  locationGreat Barrington, MA
Basin features
Tributaries 
  leftEast Branch Housatonic River, Konkapot River, Blackberry River, Shepaug River, Pomperaug River, Naugatuck River
  rightWest Branch Housatonic River, Williams River, Green River, Salmon Creek, Ten Mile River, Candlewood Lake, Still River
TypeScenic, Recreational
DesignatedDecember 29, 2022

The Housatonic River (/ˌhsəˈtɒnɪk/ 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.