Exploration of the St. Lawrence by Cartier 1534-42.
In the 16th century, Jacques Cartier made three voyages through the Gulf of St. Lawrence. Cartier, a Breton with expertise in navigation and cartography, made three voyages in 1534, 1535-6, and 1541-2 to explore both the River and the Gulf of St. Lawrence. The St. Lawrence is a waterway situated on Canada's east coast which opens out into the Atlantic Ocean.

From Lawrence J. Burpee, ed., An Historical Atlas of Canada (New York: Thomas Nelson and Sons, Limited, 1927) 5. Map by John Bartholomew & Son, Ltd., Edinburgh Geographical Institute. Modified by Tina Riche.