(Regional Water) N. of Avoca, Knox Township, Pottawatomie County, IA. US59 N. 0.3 miles from jct with I80 exit 40 just N. of Avoca, E. on York Rd. 0.2 miles to the tower on the S. side of the road. (7-13-09, N41 30.097 W95 19.946) Photos by Jack & June Schmidt.