Crowley's Ridge Parkway is not a separately designated route, but a collection of United States highways, Arkansas state highways, Missouri state routes, Missouri supplemental routes, Arkansas state highway business routes, county roads, and city streets. The route also briefly overlaps the Great River Road in Arkansas. The parkway was designated as an Arkansas Scenic Byway in 1997 as a motor route which allowed the traveler to experience the Southern heritage of the area. The National Scenic Byway designation came the following year, with an extension into Missouri in 2000.