Missouri is a state located in the Midwestern United States and is home to two major tributaries, the Platte and the Osage. The Platte River is a 6-letter tributary of the Missouri River that originates in Colorado and flows through Nebraska before joining the Missouri River near Plattsmouth, Nebraska. The Osage River is a 5-letter tributary of the Missouri River that originates in central Missouri and flows through the state before joining the Missouri River near Jefferson City, Missouri. Both rivers are important sources of water for the state of Missouri and provide recreational opportunities for residents and visitors alike.