(Flag) N. of Princeton, Dover Township, Bureau County, IL. IL16 N. 0.8 miles from jct with I80 exit 56, NW (curves N.) on 1950E St. 1.95 miles, W. on 2000N Av. 1.0 miles, N. on 1850E St. 0.1 miles to the flag on the E. side of the road at 20107. (N41 26.296 W89 30.023) Photo by Jack & June Schmidt 10-5-19.