Mt. Hood's Volcanic Past
As George Washington was winning the revolutionary war, a deluge of volcanic debris was killing trees on the Sandy River. Mount Hood erupted for nearly a decade, just a few years before Lewis & Clark came through. The mountain many Portlanders regard as part of the city skyline is actually an active volcano with a more recent history of activity than many people realize.
Aired: 10/25/12Video has closed captioning.