(~30', private, 35-09-E) across a pond N. of Trenton, Madison Township, Butler County, OH. Wayne Madison Rd. N. 1.75 miles from jct with OH73 (State St.) on the W. side of Trenton to the bridge on the E. side of the road at 4632. (N39 30.372 W84 28.610) Photo by Barbara Rayburn 7-26-19.