(Six Flags St. Louis) W. of Eureka, MO. Six Flags Rd. N. 0.2 miles from jct with I44 exit 261, veer right to the entrance & parking lot. Cake is to the NE corner of the parking lot in front of the flag oval. (N38 30.748 W90 40.494) Photos by Jack & June Schmidt 8-12-14.