Mississippi Palisades State Park, is a National Natural Landmark located in Carroll County, Illinois just north of the town of Savanna. It is a partially conserved section of the Mississippi Palisades. The area contains many caves and large cliffs along the Mississippi River at the mouth of the Apple River (Illinois) in the Driftless Area of far northwestern Illinois. Indie music artist Sufjan Stevens referenced to it in his song "The Predatory Wasp Of The Palisades Is Out To Get Us!"