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1by Valentine, Page C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2000
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2by Valentine, Page C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2000
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3by Valentine, Page C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2000
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4by Valentine, Page C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2000
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5by Valentine, Page C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2000
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6Published 2003“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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7Published 2003“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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8Published 2003“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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9by Barnhardt, Walter A., 1960-“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2006
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10by Ackerman, Seth D.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2006
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11by Parker, Gene W.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1998
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12Published 2012“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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