(Peoria Heights High School, 170', IL-72-13) in Peoria Heights, Peoria County, IL. IL40/88 (Knoxville Av.) N. 1.0 miles from jct with US150 (War Memorial Dr.), E. on Glen Av. 0.35 miles to the school on the S. side of the road. (N40 44.734 W89 35.151) Photo 5-24-09.