The document summarizes several of Canada's major physical features:
- The Great Lakes serve as the industrial heartland of North America and one of the world's busiest shipping areas. Most of Canada's population lives in this region.
- The St. Lawrence River is a major source of overseas and US/Canada shipping and trade, connecting the Great Lakes to the Atlantic Ocean. It is also a huge producer of hydroelectricity.
- The St. Lawrence Seaway, completed in 1959, connects the Great Lakes to the St. Lawrence River and Atlantic Ocean, and has supported manufacturing companies in Eastern Canada.