(Flagstone, IL-07-65) SE of Hamburg, Hamburg Township, Calhoun County, IL. Mississippi River Rd. SE. 0.7 miles from jct with Water/Hill St. on the S. side of Hamburg, E. on Gresham Hollow Rd. 0.55 miles to the quilt on the N. side of the road. Terry & Robbie Strauch. (N39 13.275 W90 41.871) Photos by Jack & June Schmidt 9-18-14.