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1Published 1998“...The Bureau ; U.S. Geological Survey,...”
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2Published 1998“...The Bureau ; U.S. Geological Survey,...”
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3Published 1998“...The Bureau ; U.S. Geological Survey,...”
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4Published 1998“...The Bureau ; U.S. Geological Survey,...”
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5Published 1998“...The Bureau ; U.S. Geological Survey,...”
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6Published 1998“...The Bureau ; U.S. Geological Survey,...”
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7Published 1998“...The Bureau ; U.S. Geological Survey,...”
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8Published 1998“...The Bureau ; U.S. Geological Survey,...”
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9Published 1998“...The Bureau ; U.S. Geological Survey,...”
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10Published 1998“...The Bureau ; U.S. Geological Survey,...”
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11Published 1998“...The Bureau ; U.S. Geological Survey,...”
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12Published 1997“...The Bureau ; U.S. Geological Survey,...”
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13Published 1999“...The Bureau ; U.S. Geological Survey,...”
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14Published 1999“...The Bureau ; U.S. Geological Survey,...”
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15Published 1999“...The Bureau ; U.S. Geological Survey,...”
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16Published 1999“...The Bureau ; U.S. Geological Survey,...”
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17Published 1999“...The Bureau ; U.S. Geological Survey,...”
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18Published 1999“...The Bureau ; U.S. Geological Survey,...”
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19Published 1999“...The Bureau ; U.S. Geological Survey,...”
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20Published 1999“...The Bureau ; U.S. Geological Survey,...”
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