Crowley's Ridge Parkway is a National Scenic Byway in northeast Arkansas and the Missouri Bootheel along Crowley's Ridge in the United States. Motorists can access the parkway from US Route 49 (US 49) at its southern terminus near the Helena Bridge over the Mississippi River outside Helena-West Helena, Arkansas, or from Missouri Route 25 (Route 25) near Kennett, Missouri. The parkway runs along Crowley's Ridge, a unique geological formation, and also parts of the St. Francis National Forest, the Mississippi River and the Mississippi Alluvial Plain. Along the route are many National Register of Historic Places properties, Civil War battlefields, parks, and other archeological and culturally significant points.