(46' x 27', IA-10-05) NNE of Independence, Byron Township, Buchanan County, IA. IA150 (Jamestown Av.) N. 5.0 miles from jct with IA939 (1st St.) in Independence, E. on 170th St. 2.25 miles, curves N. & becomes Mason Av. 0.5 miles to the crib on the E. side of the road at 1650. (N42 32.933 W91 50.637) Photo by Jack & June Schmidt 6-25-12.