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Mount Hood, the nearest major volcanic peak in Oregon, is 60 miles (100 km) southeast of Mount St. Helens. Mount St. Helens is geologically young compared with the other major Cascade volcanoes. It formed only within the past 40,000 years, and the summit cone present before its 1980 eruption began rising about 2,200 years ago. [ 11 ]
Downed tree in the 1980 blast zone of Mt. St. Helens. Spirit Lake and Mt. St. Helens in the background, Washington. (Photo by: Marli Miller/UCG/Universal Images Group via Getty Images) (Getty Images)
Anonymous, (2006) CVO Photo Archives: Hydrology and Hydrologic Monitoring Images. Cascades Volcano Observatory, United States Geological Survey, Vancouver, Washington. Glicken, HX, W Meyer, and MA Sabol, (1989) Geology and ground-water hydrology of Spirit Lake blockage, Mount St. Helens, Washington, with implications for lake retention.
Mount St. Helens, once the fifth-tallest peak in Washington State, lost about 1,300 feet from its height of 9,677, according to the USGS. The highest part of the crater rim on the southwestern ...
Reid Turner Blackburn (August 11, 1952 [citation needed] – May 18, 1980) was an American photographer killed in the 1980 volcanic eruption of Mount St. Helens. [2] A photojournalist covering the eruption for a local newspaper—the Vancouver, Washington The Columbian [ 3 ] —as well as National Geographic magazine [ 4 ] and the United States ...
More than 400 earthquakes have been detected beneath Washington's Mount St. Helens in recent months, though there are no signs of an imminent eruption, according to the U.S. Geological Survey.
The short film Eruption of Mount St. Helens, 1980 (1981) is available for free viewing and download at the Internet Archive. The short film This place in time: The Mount St. Helens story (1984) is available for free viewing and download at the Internet Archive. Aerial pictures of the July 22nd, 1980 secondary eruption
The 42-year-old experienced mountain climber of Washougal, Washington, was found Saturday within the crater of the Mount St. Helens volcano, approximately 1,200 feet below the summit, the Skamania ...