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1by Fitzpatrick, Faith A.“...U.S. Geological Survey,...”
Published 2008
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4Published 1999“...[U.S. Geological Survey, U.S. Dept. of the Interior],...”
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5by DeWild, John F.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1995
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6by Brown, Timothy A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
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7Published 2004“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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8by Robertson, Dale M.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 2018
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9by Batten, W. G.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1997
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