The Basin of the St. Lawrence is a large geographical area in North America that encompasses the drainage system of the St. Lawrence River. This basin includes parts of the Great Lakes and extends into the provinces of Quebec and Ontario in Canada, as well as several states in the United States. It plays a crucial role in the region's ecology and economy, providing water resources and supporting various industries. The basin is characterized by diverse landscapes, including forests, wetlands, and agricultural land. It is home to numerous species of wildlife and serves as an important habitat for fish and birds. The St. Lawrence Seaway, which connects the Great Lakes to the Atlantic Ocean, facilitates international trade and transportation, making the basin vital for commerce.