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	Virtual Reference Desk Abstract Cascades Volcano Observatory Cascades Volcano Observatory, Vancouver, Washington provides this site which includes volcanic hazards, maps, graphics, charts, tables, photo archives, online publications, and information about hydrology and hydrologic processes. Go to this Site NOW Subjects for this Item: VOLCANOES The Virtual Reference Desk http://www.virtualref.com/ Copyright © 1997 Christopher C. Brown Revised: 2/11/01