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Spatial Coverage
- Iowa[remove]4
- Benton County (Iowa)2
- Linn County (Iowa)2
- Allamakee County (Iowa)1
- Buchanan County (Iowa)1
- Clayton County (Iowa)1
- Crawford County (Wis.)1
- Delaware County (Iowa)1
- Illinois1
- Iowa County (Iowa)1
- Johnson County (Iowa)1
- Keokuk County (Iowa)1
- Missouri1
- Vernon County (Wis.)1
- Washington County (Iowa)1
- Wisconsin1
