gov/Volcanoes/MSH/Images/MSH80/framework.html USGS Cascades Volca File:Sthelens1.jpg licensed with PD-USGov-USGS 2007-02-05T18:40:04Z Siebrand 2912x1968...
May 1980 Source USGS photo of Mt. Saint Helens Author Harry Glicken, USGS/CVO Other versions Derivative works of this file: Sthelens1-animation.gif...
10 September 1980 Source USGS Cascades Volcano Observatory Author Harry Glicken Other versions Derivative works of this file: Sthelens1-animation.gif...
