Focus on Sedimentary Environments

River system on an active stratovolcano

White River, Mount Hood, Oregon, USA

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Space shuttle image of Cascades Range and Columbia River. Credit: NASA Earth from Space
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Space shuttle image of Cascades Range and Columbia River: detail from full-size image. Credit: NASA Earth from Space
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Processes and hazards on Mount Hood

In this slightly oblique image taken from the space shuttle, west is at the top. The Columbia River flows from east (bottom) to west (top), and is the border between Oregon (south) and Washington (north) states. Three active volcanoes are visible: Mount Hood to the south (left) of the Columbia River; Mount Adams is the snow-capped peak to the north of the river, and Mount St Helens is to the north of Mount Adams.

Mount Hood is an active andesitic stratovolcano. What are the main volcanic and sedimentary processes on this volcano? Make a list of these before you go to the map below.

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Mount Hood map
 
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Map of Mount Hood area. Credit: US Geological Survey, Cascades Volcano Observatory
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Volcanic hazards

Once you have analysed the hazards, go to the next page.


Page © ; last updated 30 July, 2002