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1Published 1994“...U.S. Geological Survey ;...”
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2by Dudley, Robert W.“...U.S. Geological Survey,...”
Published 2006
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3by Dudley, Robert W.“...U.S. Geological Survey,...”
Published 2006
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4by Dudley, Robert W.“...U.S. Geological Survey,...”
Published 2006
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5by Flynn, Robert H.“...U.S. Geological Survey,...”
Published 2006
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6by Suro, Thomas P.“...U.S. Geological Survey,...”
Published 2006
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7by Suro, Thomas P.“...U.S. Geological Survey,...”
Published 2007
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8by Olson, Scott A.“...U.S. Geological Survey,...”
Published 2007
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11by Roland, Mark A.“...U.S. Geological Survey,...”
Published 2008
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12by Lombard, Pamela“...U.S. Geological Survey,...”
Published 2009
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13by Ahearn, Elizabeth A.“...U.S. Geological Survey,...”
Published 2009
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14by Torres-Sierra, Heriberto“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1998
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15by Niehus, Colin A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1999
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16Published 1991“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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17by Murray, Mitchell H.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1994
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18by Hodgkins, Glenn“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
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19by Hortness, Jon E.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1999
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20by Niehus, Colin A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1999
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