(Mosaic Square, IA-92-30) E. of Washington, Washington Township, Washington County, IA. IA92 E. 0.3 miles from jct with Airport Rd. on the E. side of Washington to the quilt on the N. side of the road at 2480. Greg & Lori Wiley. (N41 17.908 W91 39.772) Photos by Jack & June Schmidt 6-31-12.