(47' x 27', 1936, IA-12-02) S. of Dumont, Madison Township, Butler County, IA. Douglas Av. S. 4.0 miles from jct with IA3 on the S. side of Dumont, W. on 250th St. 0.25 miles to the crib on the S. side of the road at 12684. (N42 41.139 W92 58.343) Photo by Jack & June Schmidt 7-6-12.