Saint Lawrence River photograph

Saint Lawrence River

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Length1,197 km
Basin size1,344,200 km2 (519,000 sq mi)
Source Lake Ontario
Mouths Atlantic Ocean
Gulf of Saint Lawrence
Islands Croil Island
Did you knowThe first European documented to have sailed up the St. Lawrence River was Jacques Cartier in 1535.
Date of Reg.
Date of Upd.
ID1406855
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About Saint Lawrence River


The Saint Lawrence River is a large river in the middle latitudes of North America. The Saint Lawrence River flows in a roughly north-easterly direction, connecting the Great Lakes with the Atlantic Ocean and forming the primary drainage outflow of the Great Lakes Basin.

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