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1Published 1999“...The Bureau ; U.S. Geological Survey,...”
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2Published 1999“...The Bureau ; U.S. Geological Survey,...”
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3Published 1999“...The Bureau ; U.S. Geological Survey,...”
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4Published 1999“...The Bureau ; U.S. Geological Survey,...”
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5Published 2000“...The Bureau ; U.S. Geological Survey,...”
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6Published 2000“...The Bureau ; U.S. Geological Survey,...”
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7Published 2000“...The Bureau ; U.S. Geological Survey,...”
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8Published 2000“...The Bureau ; U.S. Geological Survey,...”
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9Published 2000“...The Bureau ; U.S. Geological Survey,...”
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10Published 2000“...The Bureau ; U.S. Geological Survey,...”
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11Published 2000“...The Bureau ; U.S. Geological Survey,...”
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12Published 2000“...The Bureau ; U.S. Geological Survey,...”
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13Published 2000“...The Bureau ; U.S. Geological Survey,...”
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14Published 2000“...The Bureau ; U.S. Geological Survey,...”
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15Published 2000“...The Bureau ; U.S. Geological Survey,...”
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16Published 2000“...The Bureau ; U.S. Geological Survey,...”
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17Published 2000“...The Bureau ; U.S. Geological Survey,...”
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18Published 2000“...The Bureau ; U.S. Geological Survey,...”
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19Published 2000“...The Bureau ; U.S. Geological Survey,...”
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20Published 2000“...The Bureau ; U.S. Geological Survey,...”
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