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Mt. St. Helens
Pacific Northwest Research Station
333 SW First Avenue
Portland, OR 97204
(503) 808-2592
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Map
SCORCH
BLOW DOWN
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DEBRIS AVALANCHE
MUDFLOW
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PYROCLASTIC FLOW
CRATER WALLS
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DOME
SPIRIT LAKE
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USDA Forest Service - Pacific Northwest Research Station - Mount St. Helens
Last Modified: Monday, 18 April 2005 at 13:28:29 EDT
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