Click photo for larger version.
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Volcanic crater on South Pagan
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South Pagan, upper elevation, showing volcanic vents and low-pH alteration. Note that some of the alteration areas may be related to volcanic venting.
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Maria Richards measuring water ph at a vent on Pagan.
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View of Pagan
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Pagan
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Pagan
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Albert F. Weibel, owner of Columbia Geoscience in Hillsboro, Ore., with water-testing equipment.
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Water-testing equipment.
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Downtown Saipan
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