How long is the missouri river

The Missouri River is the longest river in North America. Its source is the Rocky Mountains from where it flows east and south for 2,341 miles before draining in the Mississippi at St.

Louis, Missouri. It drains through a sparsely populated and semi-arid watershed that includes a part of the US and two Canadian provinces. Although the Missouri is a tributary of the Mississippi, it is longer above the confluence and together they form the fourth largest rivers system in the world.

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Course

The headwaters of the Missouri River are formed by the confluence of the Jefferson, Gallatin, and Madison Rivers in the Rocky Mountains, southwestern Montana.

Where is the missouri river located

Missouri is fed by 95 significant tributaries and hundreds of smaller streams with most of the large ones coming in as it draws closer to its mouth. The watershed comprises of the drainage basin stretching over 529,350 square miles from the Rocky Mountains in the west to the Mississippi river valley in the east and from the southern extreme of western Canada to the border of the Arkansas River watershed.

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