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Start Over You searched for: Year 2003 Remove constraint Year: 2003 Place Alabama Remove constraint Place: Alabama Creator Geological Survey (U.S.). Water Resources Division. Wisconsin District Remove constraint Creator: Geological Survey (U.S.). Water Resources Division. Wisconsin District

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2003. Geological Survey (U.S.). Water Resources Division. Wisconsin District. This polygon shapefile contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islan... Geological Survey (U.S.).