Know Before You Go
From St. Louis
Take I-55 south out of St. Louis to U.S. Hwy. 67, just south of the Festus (Route A) exit. Turn right (Exit 174) onto southbound U.S. Hwy. 67 and drive past Bonne Terre, Park Hills, Leadington and into Farmington. On the south side of Farmington is the State Road 221 overpass. Exit onto State Road 221 and travel for 9 miles. When you reach the intersection with Route NN, go straight onto Route NN. Continue for 8 miles to a flashing stoplight at a three-way stop. Turn right onto northbound Hwy. 21 and travel two miles. The park entrance is on right side of road. The trip is about one and one half hours long.