(50', 1976, IL-82-06) NE of Signal Hill, St. Clair County, IL. IL157 S. 1.2 miles from jct with I64 exit 9 N. of Signal Hill, SE on IL161 1.1 miles, S. on Dutch Hollow Rd. 0.2 miles, E. on Holdener Dr. 150’ to the house on the S. side of the road at 10. (N38 34.942 W90 02.471) Photo by Jack Schmidt 1-26-07.