(Wheat Field, IA-34-35) E. of Marble Rock, Pleasant Grove Township, Floyd County, IA. Bradford (becomes 270th) St. E. 5.9 miles from jct with River St. in Marble Rock to the quilt on the E. side of the road at 2404. Jan & Dennis Brinkman. (N42 57.885 W92 45.137) Photos by Jack & June Schmidt 7-9-12.