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Du Page County


dupage county map Map legend and scale


Low elevation: <580 feet above mean sea level
      Place: Des Plaines River
      7.5' quadrangle name: Sag Bridge
      PLSS: 3-16-37N-11E
      Geology: River valley cut into Silurian/Devonian dolomite

High elevation:820 feet above mean sea level
      Place: Unnamed hilltop
      7.5' quadrangle name: Lombard
      PLSS: 3-28-40N-10E
      Geology: Kenneyville Moraine

Area: 333.51 square miles
      Total relief (approximate): 240 feet
      Average percent slope: 0.88%


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ILLINOIS STATE GEOLOGICAL SURVEY
INSTITUTE OF NATURAL RESOURCE SUSTAINABILITY     |    UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN

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Updated 5/3/2007 JKH