Because it is the longest river.
the longest waterway in Canada is the St. Lawrence river
no the Mackenzie river is longer it is in the northwest territory.
Mississippi?
St. Lawrence River in Quebec is one of the longest rivers in the world. It is the gateway to the Great Lakes and North America.
st-lawrence river in south and des prairie in north
The Gulf of St. Lawrence is east of the St. Lawrence River.
The Gulf of St. Lawrence is east of the St. Lawrence River.
The Gulf of St. Lawrence is east of the St. Lawrence River.
St. Lawrence River I had this question in my history class, this was the answer!
Here are two. You can choose one. The Mackenzie river, in the Northwest, or the St. Lawrence river, which flows through Ontario and Quebec.
The St Lawrence River runs northeast from Lake Ontario to the Atlantic Ocean.