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1by Koerkle, Edward H.“...U.S. Geological Survey,...”
Published 1996
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3by Koerkle, Edward H.“...U.S. Geological Survey,...”
Published 1996
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4Published 1996“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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5Published 1997“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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6by Koerkle, Edward H.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2000
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7by Brightbill, Robin A.“...U.S. Dept. of the Interior, U.S. Geological Survey...”
Published 2003
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8by Senior, Lisa A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2003
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9by Senior, Lisa A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2003
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10by Stuckey, Marla H.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2012
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