pre-1980 eruption description of Mount St. Helens.
Publisher: Dept. of Natural Resources, Division of Geology and Earth Resources
Published: 1980
Place of publication: [Olympia, Wash.]
Language: eng
Number of pages: 10
Subjects: Volcanoes -- Washington (State) -- Saint Helens, Mount; Saint Helens, Mount (Wash.)
Notes: Based upon Verhoogen's Mount St. Helens, a recent Cascade Volcano, and Crandell and Mullineaux's Potential hazards from future eruptions of Mount St. Helens Volcano, Washington.