Stone arch bridge (Reciprocity) W. of Zanesville, Falls Township, Muskungum County, OH. US40 W. 0.7 miles from jct with I70 exit 152 just W. of Zanesville, N. on connector Rd. 150’, W. on National Rd. 0.1 miles to the bridge. (5-5-06, N39 57.18 W82 03.58) Photos by Jack Schmidt.