(Double Chain, 1990', 1967) across Chain of Rocks Canal W. of Mitchell, Madison County, IL. I270 W. 2.3 miles from jct with IL203 (I270 exit 4) just SW of Mitchell to the bridge. (N38 45.93 W90 08.13) Photos by Jack Schmidt 3-6-06.

Photo by Mark Comstock 9-9-08.