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Adams County
Low elevation: <465 feet above mean sea level Place: Mississippi River 7.5' quadrangle name: Marblehead PLSS: 4-32-3S-8W Geology: Cahokia Alluvium in river valley High elevation: >860 feet above mean sea level Place: unnamed hilltop 7.5' quadrangle name: Fishhook PLSS: 4-35-3S-5W Geology: Loess over Cretaceous hill Area: 861.86 square miles Total relief (approximate): 395 feet Average percent slope: 1.41% |
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| Updated 5/4/2007 JKH | |||||