(Ocean #5) N. of Ottawa, Dayton Township, La Salle County, IL. IL23 (Columbus St.) N. 0.2 miles from jct with I80 exit 90 just N. of Ottawa, W. on Stevenson Rd. 0.2 miles, N. on MWM Ln. 250’ to the tower on the W. side of the road. (N41 22.875 W88 50.426) Photo by Mark & Gordie Comstock & Larry Baker 6-29-09.