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| (Meramec Caverns) NNE of Pontiac, Odell Township, Livingston County, IL. Old Route 66 N. 6.0 miles from jct with IL116 (1700N Rd.) on the W. side of Pontiac to the sign on the W. side of the road. (6-11-00, N40 56.645 W88 35.000) |
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| (Meramec Caverns) NNE of Pontiac, Odell Township, Livingston County, IL. Old Route 66 N. 6.0 miles from jct with IL116 (1700N Rd.) on the W. side of Pontiac to the sign on the W. side of the road. (6-11-00, N40 56.645 W88 35.000) |