A bookish, artsy city, Portland today is most famous for its gardens and unrelentingly nice weather.
During the Pleistocene era, much of Oregon was a covered with pulsing rivers of lava which formed what is known today as the Boring Lava Field (don’t know what’s “boring” about that). On the southeastern edge of what is now Portland, violent eruptions from one vent sent so many sizzling blobs of lava upwards that they created Mount Tabor, a so-called “cinder cone” and the only extinct volcano within the limits of a major city in the continental United States. FULL STORY
Craig Tuttle / Corbis file
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