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Move the cursor (arrow) around the
state map. When a hand appears you will be able to click to a link
about that area. Try to locate the following places: coal, fluorite,
Illinois Caverns, karst & caves, lead & zinc, loess, Mazon
Creek, New Madrid Earthquake zone, oil & gas deposits, Springfield
during the Coal Age, Starved Rock & Mattheissen St. Parks, and
Thornton Quarry. Reading the Geologic History text will give clues
to the location of some of these.
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