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A geologist remembers the Mount St. Helens eruption 37 years ago

Detailed Description

USGS geologist Don Swanson (in red) and his colleague, Jim Moore, view a car filled with ash deposits from the May 18, 1980, eruption of Mount St. Helens. Additional photos of the 1980 eruption of Mount St. Helens are posted on the USGS Cascades Volcano Observatory website:


Public Domain.