Osage River Watershed Map

The Osage River is a 276-mile-long tributary of the Missouri River in central Missouri in the United States. The eighth-largest river in the state, it drains a mostly rural area of 15,300 square miles. The watershed includes an area of east-central Kansas and a large portion of west-central and central Missouri, where it drains northwest areas of the Ozark Plateau.
  • Country: United States
  • State: Missouri · Kansas
  • Region: Osage Plains, Ozarks
  • City: Warsaw, Lake Ozark, Tuscumbia, St. Thomas
  • Mouth: Missouri River
  • Length: 276 mi (444 km)
  • Basin size: 15,300 sq mi (40,000 km²)
Data from: en.wikipedia.org