(Gray Goose, IA-34-36) S. of Charles City, Pleasant Grove Township, Floyd County, IA. Shadow Av. S. 4.6 miles from jct with US218 S. of Charles City to the quilt on the W. side of the road at 2655. Tim Parcher. (N42 58.297 W92 40.423) Photos by Jack & June Schmidt 7-9-12.