Neosho River

The Neosho River is a tributary of the Arkansas River in eastern Kansas and northeastern Oklahoma in the United States. Its tributaries also drain portions of Missouri and Arkansas. The river is about 463 miles (745 km) long. Via the Arkansas, it is part of the Mississippi River watershed. Its name is an Osage word meaning "clear water."

Course

The Neosho's headwaters are in Morris County, Kansas, and it flows southeast through Kansas. In Ottawa County, Oklahoma, the river turns south-southwest for the remainder of its course through Oklahoma. It meets the Arkansas River near the city of Muskogee, about a mile downstream of the confluence of the Arkansas River and the Verdigris River. The area of convergence of the three rivers Arkansas, Verdigris and Neosho is called "Three Forks."

In Oklahoma the Neosho ends at its confluence with Spring River at Twin Bridges State Park. From that point on it is called the Grand River. The Grand River flows south to the Grand Lake.

Dams