91. Iowa ; Ohio
1830. 2002-11-05T20:07:15Z. 2016-11-29T22:11:23Z. s.n. English. Public. Iowa and Ohio.
Search Results
1880. 2011-03-30T16:16:00Z. 2022-03-29T20:38:41Z. Geological Survey (U.S.). The Survey. English. Public. Iowa.
1967. 2014-01-06T20:58:36Z. 2015-10-27T22:12:32Z. H.M. Gousha Company. H.M Gousha Co. English. cartographic image. Public. Iowa.
94. Iowa City
1938. 2011-12-12T21:26:35Z. 2022-03-29T20:39:22Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Iowa.
1906. 2011-05-23T18:49:00Z. 2015-10-21T14:59:46Z. U.S. Geological Survey. English. Public. Allamakee County (Iowa), Clayton County (Iowa), Fayette County (Iowa), Iowa, and Winneshiek County (Iowa).
1903. 2011-05-23T18:54:24Z. 2015-10-21T14:59:46Z. U.S. Geological Survey. English. Public. Benton County (Iowa), Iowa County (Iowa), Iowa, Johnson County (Iowa), Keokuk County (Iowa), Linn County (Iowa), and Washington County (Iowa).
1900. 2011-05-23T18:59:21Z. 2015-10-21T14:59:46Z. U.S. Geological Survey. English. Public. Delaware County (Iowa), Dubuque County (Iowa), Iowa, Jones County (Iowa), and Linn County (Iowa).
1901. 2011-05-23T19:08:50Z. 2015-10-21T14:59:47Z. U.S. Geological Survey. English. Public. Clinton County (Iowa), Dubuque County (Iowa), Illinois, Iowa, Jackson County (Iowa), Jo Daviess County (Ill.), and Jones County (Iowa).
1941. 2012-03-15T13:24:42Z. 2015-10-21T15:21:24Z. United States. Bureau of the Census. U.S. G.P.O. English. Public. Iowa.
1901. 2011-05-23T19:02:53Z. 2015-10-21T14:59:47Z. U.S. Geological Survey. English. Public. Buchanan County (Iowa), Clayton County (Iowa), Delaware County (Iowa), Fayette County (Iowa), and Iowa.
