The Missouri River is the longest river in ... though it does flow into the Mississippi at a juncture near St. Louis. This confluence, called the Edward “Ted” and Pat Jones-Confluence Point ...

The Missouri River is the longest river in North America, stretching for 2,341 miles from its source in the Rocky Mountains of Montana to its confluence with the Mississippi River in St. Louis ...

The National Park Service reports that the Missouri River flows 2,341 miles from the confluence at the Gallatin, Madison and ...