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Start Over Author Geological Survey (U.S.) Spatial Coverage Iowa.

1. Geologic map index of Iowa

Yale Public content
1987. 2002-06-01T04:00:00Z. 2018-05-11T18:43:37Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Iowa and Iowa.

2. State of Iowa

Yale Public content
1957. 2018-05-21T17:19:52Z. 2018-05-21T17:19:52Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Iowa and Iowa.

3. State of Iowa : base map

Yale Public content
1966. 2018-05-21T17:24:30Z. 2018-05-21T17:24:30Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Iowa and Iowa.

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