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Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States.
Jun 21, 2024 · Mount Saint Helens, volcanic peak in the Cascade Range, southwestern Washington, U.S. Its eruption on May 18, 1980, was one of the greatest volcanic explosions ever recorded in North America. Watch the volcanic eruption of Mount Saint Helens and subsequent flooding caused by melted glaciers.
- The Editors of Encyclopaedia Britannica
Functioning as the gateway to the National Forest Service monument, Mount St Helens Visitor Center will entice you with scientific displays, a movie theatre and educational opportunities. Map & visitor guide
The 2004–2008 volcanic activity of Mount St. Helens has been documented as a continuous eruption with a gradual extrusion of magma at the Mount St. Helens volcano. Starting in October 2004, a gradual building of a new lava dome happened.
Learn about the history, geology, and ecology of Mount St. Helens, the active volcano that erupted in 1980 and created a 110,000-acre National Monument. Find out how to visit, recreate, and explore this unique landscape and its wildlife.
Learn about the history, activity, and hazards of Mount St. Helens, the most active volcano in the Cascade Range. Find maps, news, publications, and data on the volcano's eruptions, earthquakes, gas emissions, and more.
Mar 9, 2018 · Mount St. Helens is a volcano located in southwestern Washington state. It’s the most active volcano in the Cascade Range, a mountain range that extends from British Columbia through...
