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Saint Lawrence River facts for kids

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Saint Lawrence River
Saint Lawrence seaway.jpg
Saint Lawrence River near Alexandria Bay
Grlakes lawrence map.png
Map of the Saint Lawrence/Great Lakes Watershed
Other name(s) Fleuve Saint-Laurent, Fleuve St-Laurent, St-Lawrence River, St-Laurent River
Country Canada, United States
Provinces Ontario, Quebec
State New York
Major City Montreal
Metropolitan Area Greater Montreal
Physical characteristics
Main source Lake Ontario
Kingston, Ontario / Cape Vincent, New York
74.7 m (245 ft)
River mouth Gulf of St. Lawrence / Atlantic Ocean
Quebec, Canada
0 m (0 ft)
Length 500 km (310 mi)Excluding the estuary. Ca. 1200 km if included.
Discharge
  • Location:
    below the Saguenay River
  • Average rate:
    16,800 m3/s (590,000 cu ft/s)
Basin features
Basin size 1,344,200 km2 (519,000 sq mi)

The Saint Lawrence River (French: fleuve Saint-Laurent; Tuscarora: Kahnawáʼkye; Mohawk: Kaniatarowanenneh, meaning "big waterway") is a big river in eastern North America. It flows between the Canadian province of Quebec & Ontario and the American state of New York, and through the major canadian city of Montreal. It is the third largest river in Canada.

The river drains water from the Great Lakes into the Atlantic Ocean. It is more than three thousand kilometres long. The river meets the Atlantic Ocean in a big "estuary" or bay, the biggest in the world; this is called the Gulf of Saint Lawrence.

The Canadian cities of Kingston, Montreal, Trois-Rivières and Quebec City are on this river. The Saint Lawrence Seaway allows ships to go up the river and through the Great Lakes right into the middle of North America.


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