(Osborne, 40', 1976, 15-22-a - Gone) across a ditch in Osborne Conservation Center, SSW of Elkader, Cox Creek Township, Clayton County, IA. IA13 SSW 4.6 miles from jct with IA56 just S. of Elkader to the Conservation Center on the E. side of the road. Photo by Don Burnell 2-21-90.