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Brown County


brown county map Map legend and scale


Low elevation: <425 feet above mean sea level
      Place: Illinois River
      7.5' quadrangle name: Meredosia
      PLSS: 4-36-2S-2W
      Geology: Cahokia Alluvium, river valley

High elevation: >810 feet above mean sea level
      Place: unnamed hilltop
      7.5' quadrangle name: Clayton
      PLSS: 4-32-1N-4W
      Geology: Loess over Glasford diamicton

Area: 303.95 square miles
      Total relief (approximate): 385 feet
      Average percent slope: 2.13%


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

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Updated 11/21/2006 JKH