ILOIL ILWATER Illinois Natural Resource Geospatial Data Clearinghouse Coal Geology and Resource Data Gamma-ray logs database Historical aerial photographs Maps Well location (Questor) maps and data extracts Well log copying services (fee)
Geological Records Unit Geological Samples Library Historical aerial photographs Paleontological collections
Highlights archive
ILLINOIS STATE GEOLOGICAL SURVEY INSTITUTE OF NATURAL RESOURCE SUSTAINABILITY | UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN
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