banner link to ISGS Home Page  


Monroe County


monroe county map Map legend and scale


Low elevation: <375 feet above mean sea level
      Place: Mississippi River
      7.5' quadrangle name: Bloomsdale
      PLSS: 3-21-5S-10W
      Geology: Cahokia Alluvium in river valley

High elevation: >800 feet above mean sea level
      Place: Unnamed hilltop
      7.5' quadrangle name: Valmeyer
      PLSS: 3-11-3S-11W
      Geology: loess hills over Mississippian Middle Valmeyeran limestone

Area: 393.49 square miles
      Total relief (approximate): 425 feet
      Average percent slope: 1.74%


High/Low Home

 

University of Illinois logo

ILLINOIS STATE GEOLOGICAL SURVEY
INSTITUTE OF NATURAL RESOURCE SUSTAINABILITY     |    UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN

Home   |   Search   |   Site Map   |   Contact Us

Updated 5/5/2007 JKH