(MI-11-25) S. of Fair Plain, Royalton Township, Berrien County, MI. Niles Rd. SE 2.65 miles from jct with I94 exit 27 just S. of Fair Plain, E. on Marquette Woods Rd. 0.55 miles, S. (curves NE) on Stockbridge Dr. 0.4 miles to the turret on the NW side of the road at 1849. (N42 01.690 W86 24.740) Photo by Mark Comstock 2-19-23.