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Hardin County
Low elevation: <300 feet above mean sea level Place: Ohio River 7.5' quadrangle name: Shelterville PLSS: 3-35-12S-7E Geology: Cahokia Allumium, river valley High elevation: >830 feet above mean sea level Place: Unnamed hilltop 7.5' quadrangle name: Herod PLSS: 3-1-11S-7E Geology: Pennsylvanian Caseyville Sandstone ridge Area: 179.48 square miles Total relief (approximate): 530 feet Average percent slope: 3.61%
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| Updated 5/4/2007 JKH | |||