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Start Over You searched for: Author/Creator Layman, Thomas B. Remove constraint Author/Creator: Layman, Thomas B. Collection Water-resources investigations report Remove constraint Collection: Water-resources investigations report Collection A contribution of the Regional Aquifer-System Analysis Program Remove constraint Collection: A contribution of the Regional Aquifer-System Analysis Program Resource Type Map Remove constraint Resource Type: Map Region Texas Remove constraint Region: Texas Region Mississippi River Valley Remove constraint Region: Mississippi River Valley

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