The Missouri River does not run through any Canadian provinces; it primarily flows through the United States. However, its source is located in the Rocky Mountains of Montana, and it eventually meanders through several U.S. states before emptying into the Mississippi River. If you're looking for Canadian rivers, the Saskatchewan River is one example that flows through parts of Canada.
The Mississipi river, along with its major tributary, the Missouri.
Atlantic provinces
Saskatchewan and Alberta
Missouri River BasinThe Missouri River starts in Montana and flows through North and South Dakota, forms the boundary between Nebraska and Iowa and part of the boundary between Kansas and Missouri, and flows through Missouri to the Mississippi River.
the Missouri river
Louisiana is the last state on the Mississippi River's journey from northern Minnesota. It carries water from 31 states and 2 Canadian provinces through the United States into the Gulf of Mexico.
The Missouri River flows through Bismarck, North Dakota. The Heart River also flows through Bismarck.
The Saint Lawrence River passes through the provinces of Quebec and Ontario in Canada, and New York State in the US.
The Missouri River flows through Northeast Kansas
Missouri River and Mississippi River
The Prairie provinces are located in Canada, and comprise the provinces of Alberta, Saskatchewan, and Manitoba, as they are covered partially by grassland. The Mackenzie River drains much of this region of Canada.
The Mississippi river is not in Canada. It is entirely in the United States. The Mississippi River rises in northern Minnesota and flows southward through Minnesota and then becomes the border for 9 U.S. states. Wisconsin, Illinois, Kentucky, Tennessee, and Mississippi are along the east side of the Mississippi River. Iowa, Missouri, and Arkansas are along its west side. The river serves as the border between Louisiana and Mississippi before turning west and flowing through Louisiana to the Mississippi River Delta at the Gulf of Mexico.