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Surficial Deposits of Illinois

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Satellite Image Map of Illinois

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Quaternary deposits of Illinois (1979)

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Land Cover Map 1999-2000

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Karst terrains and carbonate rocks of Illinois

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Illinois Surface Topography

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Geological and Geophysical Maps of the Illinois Basin-Ozark Dome Region

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Drift Thickness Map

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Coal Industry Map

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Buried Bedrock Surface of Illinois

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