The upper reaches of the Little Niangua River, including the tributaries of Cahoochie Creek and Thomas Creek in Dallas County, are known habitats of the Niangua darter, a small fish that is on the U.S.
The upper reaches of the Little Niangua River, including tributaries like Cahoochie Creek and Thomas Creek in Dallas County, are known habitats for the Niangua darter, which is listed as endangered on the U.S.