There is a shot tower visible from Interstate 77, just a few miles from where it splits from Interstate 81 near Wytheville, Virginia. It was built around 1807. It is 75 feet high, but there is a well inside going down another 75 feet, so the molten lead actually fell 150 feet. It adjoins New River Trail State Park. http://www.dcr.virginia.gov/state_parks/shottowr.shtml

Kent