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Start Over You searched for: Author/Creator Feltis, R. D. (Richard D.), 1930- Remove constraint Author/Creator: Feltis, R. D. (Richard D.), 1930- Author/Creator Geological Survey (U.S.) Remove constraint Author/Creator: Geological Survey (U.S.) Collection Water-resources investigations report Remove constraint Collection: Water-resources investigations report Resource Type Map Remove constraint Resource Type: Map

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