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Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.
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Geological Survey research 1965, Chapter A
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Geological Survey research, 1965, Chapter D
Scientific notes and summaries of investigations by members of the Conservation, Geologic, and Water Resources Divisions tn geology, hydrology, and related fields.
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Geological Survey research 1968, Chapter A
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Geological Survey research 1969, Chapter A
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Geological Survey research 1970, Chapter A
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Geological Survey research 1971, Chapter A
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