banner link to ISGS Home Page  


St. Clair County


stclair county map 


Low elevation: <360 feet above mean sea level
      Place: Kaskaskia River
      7.5' quadrangle name: Red Bud
      PLSS: 3-32-3S-7W
      Geology: Cahokia Alluvium in river valley

High elevation: >700 feet above mean sea level
      Place: Unnamed hilltop
      7.5' quadrangle name: Columbia
      PLSS: 3-13-1S-10W
      Geology: Vandalia till uplands over Mississippian Upper Valmeyeran

Area: 666.66 square miles
      Total relief (approximate): 340 feet
      Average percent slope: 0.99%


High/Low Home

 

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

Updated 5/7/2007 JKH