The Richelieu River in Quebec, Canada flows about 130 km north to drain Lake Champlain into the St. Lawrence River at Sorel. St. Jean, Chambly, and Sorel are important communities on its route.

The French explorer Samuel de Champlain was the first European to reach the mouth of the river in 1609. Already an important pathway for the Iroquois Indians, it soon became one for French traders as well. They built forts along its length: Fort Richelieu at its mouth, Fort St. Louis (or Chambly), Fort Ste. Thérese and Fort St. Jean on the way, and Fort Ste. Anne on the Isle La Motte in Lake Champlain near its source. Some early journals and maps refer to the lower river as the Sorel River.

See also

• List of Quebec rivers