The Mississippi National River and Recreation Area is a 72-mile and 54,000-acre protected corridor along the Mississippi River through the Minneapolis–Saint Paul metro in the U.S. state of Minnesota, from the cities of Dayton and Ramsey, to just downstream of Hastings. This stretch of the upper Mississippi River includes natural, historical, recreational, cultural, scenic, scientific, and economic resources of national significance. This area is the only national park site dedicated exclusively to the Mississippi River. The Mississippi National River and Recreation Area is sometimes abbreviated as MNRRA or MISS, the four letter code assigned to the area by the National Park Service. The Mississippi National River and Recreation Area is classified as one of four national rivers in the United States, and despite its name it is technically not one of the 40 national recreation areas.