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Title: LOCATIONS OF VOLCANOES IN THE UNITED STATES
Caption: Middle: General map and key. Index maps show locations of active and potentially active volcanoes and nearby population centers (not all labeled) of the United States. There are at least 11 active and potentially active volcanoes in British Columbia and the Yukon Territory. (From Wright, T. L., and Pierson, T. C. 1992. U.S. Geological Survey Circular 1073)
Keywords: volcanoes, volcanism, volcanic eruptions, plate tectonics, tectonic plates, intraplate volcanism, mantle plumes, hot spots, magmas, lavas, decompression melting, convergent boundary, convergent boundaries, subduction zones, oceanic crust, continental crust, trenches, volcanic island arcs, continental volcanic arcs, composite cones, stratovolcanoes, shield volcanoes, calderas