(40' x 24', 1927, IA-08-04) SW of Ogden, Marcy Township, Boone County, IA. G Av. S. 0.25 miles from jct with US30 W. of Ogden to the crib on the E. side of the road at 1248. (N42 01.725 W94 02.641) Photo by Jack & June Schmidt 7-14-12.