(Rock Barn) SE of Dumont, section 35, Butler County, IA. IA3 E. 1.0 miles from jct with CR T16 in Dumont to the barn on the S. side of the road at 14012 up a driveway 0.3 miles. (N42 44.425 W92 56.796) Photo 11-2-01.

Close-up of the rock (limestone).