(MI-81-81) in Ann Arbor, Washtenaw County, MI. Hill St. W. 0.6 miles from jct with Washtenaw Av., S. on Oakland Av. 0.1 miles to the turret on the E. side of the road at 915. (N42 16.245 W83 44.288) Photo by Mark Comstock 6-11-22.