The Mississippi River's watershed includes parts of Canada, where some of its tributaries originate.

The Mississippi River’s watershed extends into Canada, particularly in the northern regions. Its tributaries, such as the Minnesota River, originate in parts of Canada before flowing southward into the United States, eventually joining the Mississippi River. This cross-border connection highlights the river's vast drainage basin, which spans multiple states in the U.S. and parts of Canada, making it one of North America’s largest and most significant watersheds.