Spatial Coverage: Illinois / Year: 1999 - Yale University Library GeoBlacklight Search Results

1. Geologic map of the Thebes quadrangle, Illinois and Missouri

1999. 2002-06-01T04:00:00Z. 2022-12-08T02:20:31Z. Geological Survey (U.S.). The Survey ; Information Services [distributor]. English. Public. Illinois, Alexander County, Missouri, and Scott County.

2. Three-dimensional geologic maps of Quaternary sediments in east-central Illinois

1999. 2002-06-01T04:00:00Z. 2016-07-23T21:13:22Z. Geological Survey (U.S.). The Survey ; Information Services [distributor]. English. cartographic image. Public. Illinois and Illinois.

3. United States--Great Lakes, Lake Michigan--Illinois--Indiana, Calumet and Indiana harbors

1999. 2011-11-16T21:12:38Z. 2015-10-21T15:05:57Z. United States Coast Survey. The Survey ; NOAA Distribution Division, N/ACC3, National Ocean Service, distributor. English. Public. Illinois, Chicago, Indiana Harbor (East Chicago, Ind.), and Michigan, Lake.