Missouri River In Montana Map: Elevations within the river’s basin range from 14,000 feet in the colorado rockies to 400 feet to its mouth at the mississippi river at 400 feet above sea level. Web aerial view of the missouri river headwaters in montana. The missouri is the longest river in the united states, flowing more than 2,500 miles from its source on.

Missouri River In Montana Map

Web missouri river, longest tributary of the mississippi river and second longest river in north america. Web aerial view of the missouri river headwaters in montana. Its flow ranges between 4,200 cubic feet per second to a maximum of 900,000 cubic feet per second.