From East St. Louis

I-55 N / I-70 E to 255 North to 143 West (Edwardsville Rd.)  Continue on E. Madison Ave (still 143 West).  Stay on 143 West and this will take you in front of the Argosy Alton Casino to a 4-way stoplight.  At the light turn left (west) onto Rt. 100 West (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.