(Rail Fence, IA-28-17) NW of Coggon, Adams Township, Delaware County, IA. Vinton St. (becomes Coggon Rd.) W. 1.3 miles from jct with Railroad St. on the W. side of Coggon, N. on Quality Ridge Rd. (becomes 120th Av.) 2.25 miles to the quilt on the E. side of the road at 3272 up a driveway 0.45 miles. Mike & Karen Ohara. (N42 18.648 W91 33.131) Photos by Jack & June Schmidt 6-22-12.