The Atlantic: The Eruption 35 Years Later
BBC Earth: Mount St. Helen’s (with videos)
Live Science: Mount St. Helen Facts & Info
National Geographic: Needless Deaths/Eruption (3/20/2016)
NewsELA: Mount St. Helens Earthquakes (5/152016)
NewsELA: Scientists Study Mount St Helens (5/28/2014)
NewsELA Text Set: Plate Tectonics [links to multiple articles]
NewsELA: Volcano Warning Signs (12/11/2017)
Time Magazine Archives: Article from 6/02/1980 Primary source!
Time: Mount St. Helen’s Anniversary (2016)
US Geological Survey (Dept. of the Interior) - Mount St. Helens