Mount St. Helens - Wikipedia
Mount St. Helens (known as Lawetlat'la to the local Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, [1] in the Pacific Northwest region of the United States.
Mount St. Helens National Volcanic Monument - US Forest Service
A vast, gray landscape lay where once the forested slopes of Mount St. Helens grew. In 1982 the President and Congress created the 110,000-acre National Volcanic Monument for research, recreation, and education.
Mount Saint Helens | Location, Eruption, Map, & Facts | Britannica
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. A total of 57 people and thousands of animals were killed in the event.
Mount St Helens Visitor Center | Washington State Parks
Sep 30, 2024 · 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. Summer: See detailed hours below - Operating hours vary. Winter: Closed Sept. 30, 2024 - through mid-May 2025.
Mount St. Helens | U.S. Geological Survey - USGS.gov
Mount St. Helens is primarily an explosive dacite volcano with a complex magmatic system. The volcano was formed during four eruptive stages beginning about 275,000 years ago and has been the most active volcano in the Cascade Range during the Holocene.
1980 eruption of Mount St. Helens - Wikipedia
On March 27, 1980, a series of volcanic explosions and pyroclastic flows began at Mount St. Helens in Skamania County, Washington, United States. A series of phreatic blasts occurred from the summit and escalated until a major explosive eruption took …
Mount St. Helens - HISTORY
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...
Mt. St. Helens National Park Visitor Guide
Mount St. Helens National Park Visitor Guide including National Park Maps, National Park Lodging and Motel Information, Mount St. Helens National Park Hiking, Climbing and Helicopter Tours
Geologic History Summary for Mount St. Helens
Nov 9, 2023 · Over its rich and complex 275,000-year history, Mount St. Helens has produced both violent explosive eruptions of volcanic tephra and relatively quiet outpourings of lava.
Mount St. Helens, Washington - Summary - USGS
Mount St. Helens (8,364 feet, 9,677 feet before May 18, 1980) is located in southwestern Washington about 50 miles northeast of Portland, Oregon, and is one of several lofty volcanic peaks that dominate the Cascade Range of the Pacific Northwest.