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Activity

2004

• SURFICIAL GEOLOGIC MAP OF SPRING VALLEY 7.5’ QUADRANGLE, LASALLE, PUTNAM, AND BUREAU COUNTIES, ILLINOIS
  22 Quaternary Mapping Applied to Hydrogeologic or Environmental Issues (Posters)
  Friday, 2 April 2004

  1:00 PM - 5:00 PM

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Date Unknown

• A BURIED RIVER VALLEY WITHIN THE SPRING VALLEY QUADRANGLE IN NORTH-CENTRAL ILLINOIS
  23 Quaternary Geology (Posters) I
• THE TICONA CHANNEL, A POSSIBLE SUB-ICE TUNNEL VALLEY
  118 Geomorphology (Posters)