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| County |
Title |
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Date |
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| Adair | Geological Map of Adair County, Iowa | |||
| Adams | Geologic Map of Adams County, Iowa | 1941 | ||
| Allamakee | Geological Map of Allamakee County, Iowa | 1895 | ||
| Appanoose | Geological Map of Appanoose County, Iowa | 1896 | ||
| Audubon | N/A | |||
| Benton | Map of the Superficial Deposits of Benton County, Iowa | 1905 | ||
| Black Hawk | Geological Map of Blackhawk County, Iowa | 1905 | ||
| Boone | Geological Map of Boone County, Iowa | 1896 | ||
| Map of the Superficial Deposits of Boone County, Iowa | 1896 | |||
| Bremer | Geological Map of Bremer County, Iowa | 1906 | ||
| Map of the Superficial Deposits of Bremer County, Iowa | 1906 | |||
| Buchanan | Geological Map of Buchanan County, Iowa | 1898 | ||
| Buena Vista | Map of the Superficial Deposits of Buena Vista County, Iowa | 1902 | ||
| Butler | Geological Map of Butler County, Iowa | 1910 | ||
| Calhoun | N/A | |||
| Carroll | Map of the Superficial Deposits of Carroll County, Iowa | 1899 | ||
| Cass | Geological Map of Cass County, Iowa | 1916 | ||
| Cedar | Geological Map of Cedar County, Iowa | 1901 | ||
| Map of the Superficial Deposits of Cedar County, Iowa | 1900 | |||
| Cerro Gordo | Geological Map of Cerro Gordo County, Iowa | 1897 | ||
| Map of the Superficial Deposits of Cerro Gordo County, Iowa | 1897 | |||
| Cherokee | Map of the Superficial Deposits of Cherokee County, Iowa | 1902 | ||
| Chickasaw | Geological Map of Chickasaw County, Iowa | 1903 | ||
| Clarke | Geological Map of Clarke County, Iowa | 1916 | ||
| Clay | Map of the Superficial Deposits of Clay County, Iowa | 1901 | ||
| Clayton | Geological Map of Clayton County, Iowa | 1903 | ||
| Topographical Map of Clayton County, Iowa | 1903 | |||
| Map of the Superficial Deposits of Clayton County, Iowa | 1903 | |||
| Clinton | Geological Map of Clinton County, Iowa | 1905 | ||
| Map of the Superficial Deposits of Clinton County, Iowa | 1905 | |||
| Crawford | Map of the Superficial Deposits of Crawford County, Iowa | 1926 | ||
| Dallas | Geological Map of Dallas County, Iowa | 1898 | ||
| Map of the Superficial Deposits of Dallas County, Iowa | 1898 | |||
| Davis | Geological Map of Davis County, Iowa |
1910 | ||
| Decatur | Geological Map of Decatur County, Iowa |
1898 | ||
| Delaware | Geological Map of Delaware County, Iowa |
1898 | ||
| Des Moines | Geological Map of Des Moines County, Iowa |
1894 | ||
| Dickinson | Map of the Superficial Deposits of Dickinson County, Iowa | 1900 | ||
| Dubuque | Geological Map of Dubuque County, Iowa | 1900 | ||
| Topographical Map of Dubuque County, Iowa | 1900 | |||
| Map of the Superficial Deposits of Dubuque County, Iowa | 1900 | |||
| Map of Dubuque Township, Showing the Location of the Leading Crevices | 1900 | |||
| Emmet | Map of the Superficial Deposits of Emmet County, Iowa | 1905 | ||
| Fayette | Geological Map of Fayette County, Iowa | 1905 | ||
| Map of the Superficial Deposits of Fayette County, Iowa | 1905 | |||
| Floyd | N/A | |||
| Franklin | Geological Map of Franklin County, Iowa | 1906 | ||
| Map of the Superficial Deposits of Franklin County, Iowa | 1906 | |||
| Fremont | Map of the Superficial Deposits of Fremont County, Iowa | 1903 | ||
| Greene | N/A | |||
| Grundy | Geological Map of Grundy County, Iowa | 1910 | ||
| Guthrie | Geological Map of Guthrie County, Iowa | 1897 | ||
| Hamilton | Map of the Superficial Deposits of Hamilton County, Iowa | 1910 | ||
| Hancock | Map of the Superficial Deposits of Hancock County, Iowa | 1903 | ||
| Hardin | Geological Map of Hardin County, Iowa | 1900 | ||
| Map of the Superficial Deposits of Hardin County, Iowa | 1900 | |||
| Harrison | Map of the Superficial Deposits of Harrison County, Iowa | 1910 | ||
| Henry | Geological Map of Henry County, Iowa | 1902 | ||
| Howard | Geological Map of Howard County, Iowa | 1903 | ||
| Map of the Superficial Deposits of Howard County, Iowa |
1903 | |||
| Humboldt | Map of the Superficial Deposits of Humboldt County,
Iowa |
1899 | ||
| Ida | Map of the Superficial Deposits of Ida County, Iowa | 1905 | ||
| Iowa | Geological Map of Iowa County, Iowa | 1910 | ||
| Jackson | Geological Map of Jackson County, Iowa | 1906 | ||
| Map of the Superficial Deposits of Jackson County, Iowa | 1906 | |||
| Jasper | Geological Map of Jasper County, Iowa | 1905 | ||
| Map of the Superficial Deposits of Jasper County, Iowa | 1905 | |||
| Jefferson | Geological Map of Jefferson County, Iowa | 1902 | ||
| Johnson | Geological Map of Johnson County, Iowa | 1897 | ||
| Map of the Superficial Deposits of Johnson County, Iowa | 1897 | |||
| Jones | Geological Map of Jones County, Iowa | 1896 | ||
| Keokuk | Geological Map of Keokuk County, Iowa | 1895 | ||
| Kossuth | N/A | |||
| Lee | Geological Map of Lee County, Iowa | 1894 | ||
| Linn | Geological Map of Linn County, Iowa | 1895 | ||
| Louisa | Geological Map of Louisa County, Iowa | 1900 | ||
| Map of the Superficial Deposits of Louisa County,
Iowa |
1900 | |||
| Lucas | Geological Map of Lucas County, Iowa | 1926 | ||
| Lyon | Map of the Superficial Deposits of Lyon County, Iowa | 1900 | ||
| Madison | Geological Map of Madison County, Iowa | 1897 | ||
| Mahaska | Geological Map of Mahaska County, Iowa | 1895 | ||
| Marion | Geological Map of Marion County, Iowa | 1901 | ||
| Marshall | Geological Map of Marshall County, Iowa | 1897 | ||
| Map of the Superficial Deposits of Marshall County, Iowa | 1897 | |||
| Mills | Map of the Superficial Deposits of Mills County, Iowa | 1903 | ||
| Mitchell | Geological Map of Mitchell County, Iowa | 1903 | ||
| Monona | Map of the Superficial Deposits of Monona County, Iowa | 1910 | ||
| Monroe | Geological Map of Monroe County, Iowa | 1902 | ||
| Montgomery | Geological Map of Montgomery County, Iowa | 1895 | ||
| Muscatine | Geological Map of Muscatine County, Iowa | 1899 | ||
| Map of the Superficial Deposits of Muscatine County, Iowa | 1899 | |||
| O'Brien | Map of the Superficial Deposits of O'Brien County, Iowa | 1901 | ||
| Osceola | Map of the Superficial Deposits of Osceola County, Iowa | 1900 | ||
| Page | Geological Map of Page County, Iowa | 1901 | ||
| Palo Alto | Map of the Superficial Deposits of Palo Alto County, Iowa | 1905 | ||
| Plymouth | Geological Map of Plymouth County, Iowa | 1898 | ||
| Pocahontas | Map of the Superficial Deposits of Pocahontas County, Iowa | 1905 | ||
| Polk | Geological Map of Polk County, Iowa | 1897 | ||
| Map of the Superficial Deposits of Polk County, Iowa | 1897 | |||
| Pottawattamie | Map of the Superficial Deposits of Pottawattamie County, Iowa | 1901 | ||
| Poweshiek | Geological Map of Poweshiek County, Iowa | 1910 | ||
| Ringgold | Map of the Superficial Deposits of Ringgold County, Iowa | 1916 | ||
| Sac | Map of the Superficial Deposits of Sac County, Iowa | 1905 | ||
| Scott | Geological Map of Scott County, Iowa | 1899 | ||
| Map of the Superficial Deposits of Scott County, Iowa | 1899 | |||
| Shelby | N/A | |||
| Sioux | Map of the Superficial Deposits of Sioux County, Iowa | 1900 | ||
| Story | Geological Map of Story County, Iowa | 1899 | ||
| Map of the Superficial Deposits of Story County, Iowa | 1899 | |||
| Tama | Map of the Superficial Deposits of Tama County, Iowa | 1903 | ||
| Taylor | Map of the Superficial Deposits of Taylor County, Iowa | 1916 | ||
| Union | N/A | |||
| Van Buren | Geological Map of Van Buren County, Iowa |
1895 | ||
| Wapello | Geological Map of Wapello County, Iowa | 1902 | ||
| Warren | Geological Map of Warren County, Iowa | 1896 | ||
| Washington | Geological Map of Washington County, Iowa | 1896 | ||
| Wayne | Geological Map of Wayne County, Iowa | 1910 | ||
| Webster | Geological Map of Webster County, Iowa | 1902 | ||
| Winnebago | Map of the Superficial Deposits of Winnebago County, Iowa | 1903 | ||
| Winneshiek | Geological Map of Winneshiek County, Iowa | 1906 | ||
| Map of the Superficial Deposits of Winneshiek County, Iowa | 1906 | |||
| Woodbury | Geological Map of Woodbury County, Iowa | 1896 | ||
| Worth | Geological Map of Worth County, Iowa | 1900 | ||
| Map of the Superficial Deposits of Worth County, Iowa | 1900 | |||
| Wright | Map of the Superficial Deposits of Wright County, Iowa | 1910 |
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University of Alabama
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