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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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Geologic map of the Hibernia 7 1/2-minute Quadrangle, central Kentucky
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Geologic map of the Saloma 7 1/2-minute Quadrangle, central Kentucky
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Surficial geologic map of Kentucky River Area Development District, southeastern Kentucky
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Geologic map of the Hindman 7 1/2-minute Quadrangle, Knott County, Kentucky
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Interim geologic map of the Shirley Quadrangle, Massachusetts
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Preliminary surficial geologic map of the Palmer Quadrangle south-central Massachusetts
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Geologic map of the Buckhorn Quadrangle, southeastern Kentucky
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Reconnaissance bedrock geologic map of the Leicester Quadrangle, Massachusetts
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Geologic map of the southern Tobin Range, Pershing County, Nevada
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Map showing geochemical anomalies in the Brooks Range, Alaska
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Preliminary bedrock geologic maps of the Lynn and Marblehead South quadrangles, Massachusetts
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Preliminary geologic map of the Cubero Quadrangle, Valencia County, New Mexico
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