The Missouri River is one of the
Mississippi River's largest tributaries. With its headwaters originating in the mountains of
Montana and continuing through its confluence with the Mississippi River just north of
Saint Louis,
Missouri on down to the [Gulf of Mexico]
?, it makes the third longest river in the world after the [Nile River]
? and the
Amazon River.
The Missouri River flows through or at the frontier of the following states: Montana, North Dakota, South Dakota, Nebraska, Iowa, Kansas, and Missouri.
See also: Mississippi River, United States.
![[Home]](wikipedia.png)