(Hartville) W. of Hartville, Gasconade Township, Wright County, MO. Marshfield St. W. 0.55 miles from jct with Main Av., S. on Sponsler Av. 0.15 miles to the tower on the W. side of the road. (N37 14.854 W92 31.287) Photos by Jack & June Schmidt 5-29-16.