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Richland County Low elevation: <390 feet above mean sea level Place: Fox River 7.5' quadrangle name: Mount Erie PLSS: 3-13-2N-9E Geology: Equality Formation Carmi Member lake bottom deposits in river valley High elevation: >600 feet above mean sea level Place: Unnamed hilltop 7.5' quadrangle name: Landes PLSS: 2-29-4N-14W Geology: Vandalia till upland over Pennsylvanian Mattoon Formation Area: 358.02 square miles Total relief (approximate): 210 feet Average percent slope: 0.77%
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| Updated 5/7/2007 JKH | |||||