The Arkansas River is a major tributary of the Mississippi River. It generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's
Arkansas River headwaters in Colorado
The headwaters of the Arkansas near Leadville, Colorado
Arkansas River near Sterling Kansas
Arkansas River in Colorado, with Mount Harvard in distance, circa 1867. Photo by William Henry Jackson.
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
Neosho River near Neosho Rapids, Kansas
Fort Gibson Dam and Reservoir on the Grand River in Cherokee and Wagoner Counties, Oklahoma
Fort Gibson Lake and Sequoyah State Park on the Grand River in Cherokee County, Oklahoma