(W.J. Zahnow Elementary, 78', 1970, IL-67-01) in Waterloo, Monroe County, IL. Hamacher St. E. 0.2 miles from jct with IL3 (Market St.) to the school on the N. side of the road at 301. (9-7-09, N38 20.546 W90 08.804) Photos by Jack Schmidt.