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Subject
Imagery and Base Maps
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Collection
Illinois Geospatial Data Clearinghouse
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Year
1994
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Search Results
1. Glacial Drift: Thickness and Character: Illinois, 2004
1994. Illinois State Geological Survey. This is an SDE feature dataset showing drift thickness in Illinois. Data are originally from ISGS Circular 490 by Piskin and Bergstrom (1975), Plat...
2. Streams and Shorelines: Illinois, 2004
1994. Illinois Department of Natural Resources. This dataset contains data representing streams and shorelines in Illinois and portions of surrounding states as derived from US Geological Survey ...