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Does Portland, Oregon, have a volcano within its metropolitan area?

Metropolitan Portland, Oregon, like Auckland, New Zealand, includes most of a Plio-Pleistocene volcanic field. The Boring Lava includes at least 32 and possibly 50 cinder cones and small shield volcanoes. 


Wood, C.A., and Kienle, Jurgen, eds., 1990, Volcanoes of North America: United States and Canada: Cambridge University Press, p. 144-145. 

Tags: Geothermal Resources, Earthquakes, Tectonics, Monitoring, Volcanoes, Lava, Seismicity, Ring of Fire