(Bank, 1916) SE of Unionville, Columbia Township, Tuscola County, MI. Bay City Forestville Rd. E. 5.7 miles from jct with MI25 (Center St.) in Unionville, S. on Colwood Rd. 3.0 miles to the bldg on the W. side of the road. (N43 36.681 W83 21.130) Photos by Mark Comstock 7-19-08.