(Emblem) at the old Formosa Plastics W. of Illiopolis, Illiopolis Township, Sangamon County, IL. Old Route 36 W. 1.0 miles from jct with Matilda St. on the W. side of Illiopolis, S. on Cantrell Rd. 0.2 miles to the tower on the W. side of the road. (N39 51.014 W89 16.447) Photos 3-22-09.