Missouri National Recreational River
- Lower 59-mile reach (Gavins Point Dam to Ponca, Nebraska: November 10, 1978
- Upper 39-mile reach (Fort Randal Dam to Running Water, SD; also includes 20 miles of the lower Niobrara River and 8 miles of Verdigre Creek): May 24, 1991
Gross Area Acres for FY 2010 -- 69,000
Total acres, NPS managed area -- 350
Visit the Parks Report page on the National Park Service Visitor Use Statistics website for current and past visition numbers.