Walnut River near Winfield, Kansas.
Situated in southeastern Kansas, the Walnut River has its source in two forks that rise in the northern part of Butler County. Cole and Durechon Creeks unite about a mile southwest of the old village of Chelsea to form the waterway known in the past as the “Little Verdigris River.”
It flows southwest past the cities of Eldorado, Augusta, and Winfield before turning almost due south and emptying into the Arkansas River south of Arkansas City in Cowley County. The river has several small tributaries, the most prominent of which are the Whitewater River on the west and the Little Walnut and Rock Creeks on the east.
The river is approximately 121 miles long and flows through the Flint Hills region of Kansas. Upstream of El Dorado, a U.S. Army Corps of Engineers dam forms El Dorado Lake, along which a Kansas state park has been designated.
©Kathy Alexander/Legends of Kansas, updated August 2024.
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