The Moreau River basin, a sub basin of the Missouri River, lies in the central Missouri counties of Cole, Miller, Moniteau, and Morgan. The Moreau River is formed by the union of North Moreau Creek and South Moreau Creek, and empties into the Missouri River just south of Jefferson City, MO. The watershed is approximately 584 square miles. The Moreau River has an average discharge of 381 cubic feet/second. It is an order 6 stream with an average gradient of 1.6 feet per mile.