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Inland Waters
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Illinois
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1. Historical Aerial Photography: Illinois, 1937-1947
1936. Illinois State Geological Survey. The primary data set consists of historical black and white aerial photographs from Illinois acquired during 1936 to 1941. Alternative years of pho...
2. National Wetlands Inventory: Illinois, 1987
1980. U.S. Fish and Wildlife Service, Illinois Department of Natural Resources, and Illinois Natural History Survey. This feature dataset contains wetlands and deepwater habitats in Illinois is of 1987 based on U.S. Fish and Wildlife Service National Wetlands Inve...
3. One-Hundred and Five-Hundred Year Floodzones for Unincorporated Areas: Illinois, 2006
1996. Illinois State Water Survey. This feature class was quickly assembled from old Arc/Info coverages to produce a general graphic image and has not reviewed or quality-controlled ...
4. U.S. Geographic Names Information System (GNIS): Illinois Portion, 2006
1974. U.S. Geological Survey. This metadata document is abstracted from the GNIS metadata provided with the original data, with some ISGS-specific information added. The origina...