Publisher: Iowa Geological Survey - Yale University Library GeoBlacklight Search Results

1. Bouguer gravity anomaly map of Iowa

1981. 2018-05-21T17:33:06Z. 2018-05-21T17:33:06Z. Anderson, Raymond R. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa.

2. Geologic map of Iowa

1969. 2018-05-21T17:42:01Z. 2018-05-21T17:42:01Z. Iowa Geological Survey. Iowa Geological Survey. English. cartographic image. Public. Iowa, Iowa., and États-Unis.

3. Land-use in Iowa, 1976

1976. 2018-04-24T20:06:50Z. 2018-04-24T20:06:50Z. Anderson, Raymond R. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa.

4. Mineral resources of Iowa

1970. 2018-05-21T17:48:28Z. 2018-05-21T17:48:28Z. Dorheim, Fred H. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa.

5. Mineral resources of Iowa

1947. 2018-05-21T17:51:13Z. 2018-05-21T17:51:13Z. Hershey, H. Garland (Howard Garland), 1905-. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa.

6. Mississippian aquifer of Iowa [cartographic material]

1973. 2018-04-20T19:01:57Z. 2018-09-05T19:39:35Z. Horick, Paul J. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa.

7. The Maquoketa Formation (Upper Ordovician) in Iowa [cartographic material]

1971. 2018-04-20T18:43:31Z. 2021-05-04T22:29:48Z. Parker, Mary Combs. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa. Ordovician and From 425 to 500 million years ago.