Ivy and Kelley in Mrs. Neppl’s class at Tremont Elementary are learning about rivers. They want to know: What is the longest river in the U.S.? The Missouri River, at 2,541 miles, beats out the mighty Mississippi at 2,230 miles. But here’s the thing: the Missouri is a tributary of the Mississippi.
Joe Zellner of Grand Marais, Minn., finished the 72-mile course between Yankton and Sioux City, Iowa, in less than nine hours.
The fast-moving Missouri River is making for spectacular displays at the dams that control its flow.