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Overlay represents area within CVO's area of responsibility.
Map Legend
Cascade Range Weekly Update
Friday, August 15, 2014 2:10 PM
 Current Volcano Alert Level: NORMAL
 Current Aviation Color Code: GREEN
 
Cascades Volcano Observatory's mission
The U.S. Geological Survey's Cascades Volcano Observatory strives to serve the national interest by helping people to live knowledgeably and safely with volcanoes in WA, OR, and ID.

HOT STUFF   (archive)
Young Volcanoes in WA, OR & ID1