banner link to ISGS Home Page  

Clark County


clark county map Map legend and scale


Low elevation: <430 feet above mean sea level
      Place: Wabash River
      7.5' quadrangle name: West Union
      PLSS: 2-4-8N-11W
      Geology: Cahokia Alluvium in river valley

High elevation: >735 feet above mean sea level
      Place: unnamed hilltop
      7.5' quadrangle name: Westfield East
      PLSS: 2-21-12N-14W
      Geology: Nevins Moraine

Area: 499.36 square miles
      Total relief (approximate): 305 feet
      Average percent slope: 1.14%


High/Low Home

 

Home | Search | Site Map | Contact Us
State of Illinois | Illinois Department of Natural Resources | University of Illinois

Updated 5/4/2007 JKH