From Fenton (Six Flags Area), Webster Groves, Sunset Hills, Crestwood, Pacific:

Take 44 East to 270 North to MO Route 367/US 67 North.  Follow this until you cross the Clark Bridge (big suspension bridge) that comes into Alton.  Turn left off the bridge (Landmarks Blvd.).  Go to third light and turn Left (West) onto Rt. 100 (Great River Road).  Follow Hwy. 100 approx. 12 miles to the park.  We are located on the right side of the highway, just inside the Grafton city limits.