(I-State, IA-42-02) N. of Whitten, Union Township, Hardin County, IA. B Av. N. 0.9 miles from jct with Union/305th St. in Whitten to the quilt on the W. side of the road at 29657. Schwarz Farm. (N42 16.331 W93 00.138) Photos by Jack & June Schmidt 7-6-12.