Lowest and Highest Points in McLean County


McLean County map Map legend and scale

Low elevation: <600 feet above mean sea level
      Place: Sugar Creek
      7.5' quadrangle name: Armington
      PLSS: 3-31-22N-1W
      Geology: Cahokia Alluvium and till in river valley

High elevation: >950 feet above mean sea level
      Place: Unnamed hilltop
      7.5' quadrangle name: Saybrook
      PLSS: 2-6-23N-6E
      Geology: Fletcher / Eureka / Normal Moraine complex

Area: 1,174.05 square miles
      Total relief (approximate): 350 feet
      Average percent slope: 0.75%

High/Low Home


Updated 10/1/2009 JKH

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

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