File:Mount St. Helens eruption memorial, Johnston Ridge.jpg - Wikimedia Commons
1980 Eruption Of Mount St. Helens 'Seemed Apocalyptic' : NPR
Decades after catastrophic 1980 eruption, Mount St. Helens is 'recharging' - ABC News
Today in Earthquake History: Mount St. Helens 1980
Remember Mt. St. Helens' 40th anniversary virtually this year | Washington State Military Department, Citizens Serving Citizens with Pride & Tradition
Photos: Mt. St. Helens erupts on this date in 1980, killing 57 people – East Bay Times
Mount St. Helens erupts - HISTORY
Mount St. Helens' 1980 Eruption Changed the Future of Volcanology | U.S. Geological Survey
Anniversary of the Mount St. Helens eruption | Earth | EarthSky
Mount St. Helens Fast Facts | CNN
Mount St Helens 40 years on | Nature Reviews Earth & Environment
Mount Saint Helens | Location, Eruption, & Facts | Britannica
42 years ago: Mount St. Helens woke up and blew her top
30 Years Later: The Anniversary of the Eruption of Mount St. Helens | At the Smithsonian| Smithsonian Magazine
Mount St. Helens - Wikipedia
Mount St. Helens: May 18, 1980 - YouTube
41 Years After Mount St. Helens' Eruption - UW Combined Fund Drive
The Eruption of Mount St. Helens in 1980 - The Atlantic
Photos: Mt. St. Helens erupts 40 years ago, killing 57 people
Remembering the deadly Mount St. Helens eruption 41 years ago | king5.com
Mount St. Helens: A timeline | kgw.com
