(Leap Frog, IA-92-63) WNW of Brighton, Clay Township, Washington County, IA. IA1/78 W. 3.6 miles from jct with Benton St. in Brighton, N. (curves E.) on Lake Darling Rd. 0.3 miles, N. on Lake Darling Rd. 1.2 miles, right 100 yds to the quilt at 110. Lake Darling State Park. (N41 11.399 W91 53.625) Photos by Jack & June Schmidt 6-14-12.