Lowest and Highest Points in Calhoun County

Calhoun County map Map legend and scale
Low elevation: <420 feet above mean sea level
      Place: Illinois and Mississippi Rivers
      7.5' quadrangle name: Grafton
      PLSS: 4-6-13S-1E
      Geology: Cahokia Alluvium, river valley

High elevation: >815 feet above mean sea level
      Place: unnamed hilltop
      7.5' quadrangle name: Foley
      PLSS: 4-14-11N-2W
      Geology: Providence Moraine, Wisconsin
            end moraine


Area: 280.66 square miles
      Total relief (approximate): 395 feet
      Average percent slope: 3.55%



High/Low Home


Updated 05/25/2011 SLD

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