(Snow Castle, IA-11-11) NW of Storm Lake, Washington Township, Buena Vista County, IA. Milwaukee Av. NW 1.1 miles from jct with 90th Av. on the NW side of Storm Lake, N. on 80th Av. 0.9 miles to the quilt on the W. side of the road at 5831. Robert Holmes. (N42 40.255 W95 15.048) Photos by Jack & June Schmidt 7-16-12.