(Consolidated Road, 1880) under RR tracks S. of Eaton, Preble County, OH. OH122 SE. 1.8 miles from jct with US35 in Eaton, S. on Wayne Trace Rd. 0.5 miles, W. on Consolidated Rd. 0.75 miles to the tunnel. (N39 42.852 W84 37.563) Photos by Jack & June Schmidt 6-3-15.