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Fulton County
Low elevation: <435 feet above mean sea level Place: Illinois River 7.5' quadrangle name: Havana PLSS: 4-20-4N-4E Geology: Cahokia Alluvium in river valley High elevation: >780 feet above mean sea level Place: Unnamed hilltop 7.5' quadrangle name: Farmington West PLSS: 4-28-8N-4E Geology: Radnor till, possible moraine Area: 873.68 square miles Total relief (approximate): 345 feet Average percent slope: 1.91%
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| Updated 5/4/2007 JKH | |||||