(Liberty Star, IA-34-29) W. of Marble Rock, Union Township, Floyd County, IA. 270th St. W. 1.4 miles from jct with River Rd. in Marble Rock to the quilt on the N. side of the road at 1657. Rick Rex. (N42 57.972 W92 53.865) Photos by Jack & June Schmidt 7-5-12.