(16', IA-34-10) S. of Charles City, St. Charles Township, Floyd County, IA. Shadow Av. S. 0.9 miles from jct with I218 exit 218 S. of Charles City to the bldg on the W. side of the road at 2290. (N43 01.520 W92 40.432) Photo by Jack & June Schmidt 7-9-12.