1965. 2011-12-12T21:25:39Z. 2022-03-29T20:39:13Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois.
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1965. 2011-12-12T21:25:43Z. 2022-03-29T20:39:13Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois and Kentucky.
3. Elgin, Ill
1965. 2011-12-12T21:25:51Z. 2022-03-29T20:39:14Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois.
1965. 2011-12-12T21:25:57Z. 2022-03-29T20:39:15Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois and Wisconsin.
1965. 2011-12-12T21:25:58Z. 2022-03-29T20:39:15Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois.
1965. 2011-12-12T21:26:24Z. 2022-03-29T20:39:21Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois and Wisconsin.