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1999. 2019-09-04T15:32:37Z. 2019-09-07T21:35:06Z. Iowa. Department of Natural Resources. Geological Survey Bureau. Iowa Dept. of Natural Resources. English. cartographic image. Public. Iowa and Iowa.
2000. 2019-09-04T15:30:29Z. 2019-09-07T21:34:56Z. Iowa. Department of Natural Resources. Geological Survey Bureau. The Bureau. English. cartographic image. Public. Iowa and Iowa.
1976. 2018-04-24T20:06:50Z. 2018-04-24T20:06:50Z. Anderson, Raymond R. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa.
126. Le Mars
1964. 2011-12-12T21:26:35Z. 2022-03-29T20:39:22Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Iowa.
127. Leclaire
1892. 2011-12-12T21:26:35Z. 2022-03-29T20:39:22Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois and Iowa.
128. Lehigh
1923. 2011-12-12T21:26:35Z. 2022-03-29T20:39:22Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Iowa.
129. Lomax, Ill.-Iowa
1937. 2011-12-12T21:26:04Z. 2022-03-29T20:39:15Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Illinois and Iowa.
130. Madrid
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