If you want your state experience to literally rock, then you can do it at Washington State Park in the state of Missouri. The park contains petroglyphs, or rock carvings done by ancient Native Americans. These petroglyphs are carved in the park’s dolomite docks, estimated to have been made around 1000-1600. These rocks provide scholars with clues about the lives of prehistoric Native Americans in Missouri. The site is also believed to be a religious site and ceremonial grounds for these people believed to be related to the Cahokia Mounds settlers in Illinois.

Aside from rock hunting, the 1,800-acre park also offers excellent cabin accommodations and watersports activities swimming, boating, canoeing and fishing on the Big River. The park has campsites and hiking trails for people who prefer to experience the park on foot.