(MI-81-112) at Lakewood Elementary School in Ann Arbor, Washtenaw County, MI. Gralake Av. S. 0.4 miles from jct with Jackson Av. to the school. Hex bldg is SW of the main bldg. This is the NW classroom. (N42 16.615 W83 47.468) Photo by Mark Comstock 5-14-23.