The St. Lawrence River is natural. It is not man built.
No! It is the Mackenzie river.
spain
The Rocky and Appalachian Mountains
Samuel de Champlain
It is 1197 kilometers long.
they use boats
melaine atmadja is 23 years
The St.Lawrence river flows into the Atlantic Ocean and the Great lakes.
you
Samuel de Champlain
yes
1535 may 19th in spring.