This large tributary of the Mississippi River runs from Montana to just north of St. Louis, Missouri where it meets up with the Mississippi River. What is the name of this second longest river in North America?

The Missouri River on its own has a length of 2,315 miles (3,726 km) and is the second longest river in North America. This river creates the natural parts of the borders between South Dakota and Nebraska, Nebraska and Iowa, Nebraska and Missouri, and Kansas and Missouri.

Asked by Jason Forbes · Last updated 5 years ago · 318.6K views · SOURCE