(Eagle) NE of Riverton, Clear Lake Township, Sangamon County, IL. Overpass Rd. N. 0.45 miles from jct with I72 exit 108 SE of Riverton, NE (right - curves E.) on Old Route 66 1.1 miles, N. on Petal Rd. 0.5 miles, W. on Dawson Ln. 0.2 miles to the carving on the N. side of the road at 7541. (N39 51.621 W89 30.636) Photo 12-10-12.