Did You Know?

  • At 2,619 miles, the Missouri River is the longest river in the United States—longer even than the Mississippi River.
  • The Missouri River drains 1/6 of the entire United States.
  • The Missouri River Basin is home to more than 10 million people.
  • The source of the Missouri River is Hell Roaring Creek in Montana, elevation 8,840’.
  • Over 75% of the Missouri River is impounded behind dams or has been channelized for navigation.

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