Lowest and Highest Points in Illinois


state image Map legend

Low elevation: <290 feet above mean sea level
      Place: Mississippi and Ohio Rivers
      7.5' quadrangle name: Wyatt
      PLSS: 3-32-17S-1E
      Geology: Cahokia Alluvium in river valley

High elevation: 1235 feet above mean sea level
      Place: Charles Mound
      7.5' quadrangle name: Shullsburg
      PLSS: 4-13-29N-2E
      Geology: Silurian limestone hill

Area: 55,768.37 square miles
      Total relief (approximate): 945 feet
      Average percent slope: 1.15%

High/Low Home


Updated 10/1/2009 JKH

ILLINOIS STATE GEOLOGICAL SURVEY
E. Donald McKay, III, Interim Director

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