(Pinwheel Star, IA-61-17) N. of Winterset, Winterset Township, Madison County, IA. US169 N. 0.6 miles from jct with IA92 on the N. side of Winterset to the quilt on the E. side of the road at 2105. Weeks Family. (N41 21.222 W94 00.768) Photos by Jack & June Schmidt 7-23-12.