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Spatial Coverage
- Iowa[remove]102
- Illinois26
- Missouri9
- Wisconsin5
- Clayton County (Iowa)4
- Delaware County (Iowa)4
- Jones County (Iowa)4
- Linn County (Iowa)4
- Clinton County (Iowa)3
- Dubuque County (Iowa)3
- Allamakee County (Iowa)2
- Benton County (Iowa)2
- Buchanan County (Iowa)2
- Cedar County (Iowa)2
- Fayette County (Iowa)2
- Johnson County (Iowa)2
- Muscatine County (Iowa)2
- Nebraska2
- Rock Island County (Ill.)2
- Scott County (Iowa)2
