1. Jefferson
1964. 2011-12-12T21:26:35Z. 2022-03-29T20:39:22Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Iowa.
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2. Le Mars
1964. 2011-12-12T21:26:35Z. 2022-03-29T20:39:22Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Iowa.
3. Union Center
1964. 2011-12-12T21:26:40Z. 2022-03-29T20:39:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Iowa.
