Space Shuttle view
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the volcano
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summit area
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upper valley
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sediment transport
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fluvial sediment
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Mount Hood is an active stratovolcano which last erupted in the mid 1800s. The products of that and earlier eruptions are continuously reworked and transported downslope by active river processes and debris flows in the radiating valleys which dissect the lower slopes of the volcano.
Page © ; last updated 13 August, 2013