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USGS/Cascades Volcano Observatory, Vancouver, Washington

Mount St. Helens, Washington
May 18, 1980 Blowdown

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MSH80_blowdown_with_st_helens_05-19-80.jpg
Day after the May 18, 1980 eruption of Mount St. Helens. View of denuded slope and blowdown timber, with a still steaming Mount St. Helens in the background.
USGS Photograph taken on May 19, 1980, by Peter Lipman.
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MSH80_blowdown_elk_rock_08-22-80.jpg
Blowdown, Elk Rock, North Fork Toutle River. Note singed area on left.
USGS Photograph taken on August 22, 1980, by Lyn Topinka.
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MSH80_blowdown_singe_08-22-80.jpg
Blowdown in the North Fork Toutle drainage, with singed area on left.
USGS Photograph taken on August 22, 1980, by Lyn Topinka.
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MSH80_blowdown_smith_creek_09-24-80.jpg
The slopes of Smith Creek valley, east of Mount St. Helens, show trees blown down by the May 18, 1980 lateral blast. Two U.S. Geological Survey scientists (lower right) give scale. The direction of the blast, shown here from left to right, is apparent in the alignment of the downed trees. Over four billion board feet of usable timber, enough to build 150,000 homes, was damaged or destroyed.
USGS Photograph taken on September 24, 1980, by Lyn Topinka.
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MSH80_aerial_blowdown_fawn_lake_10-28-80.jpg
Aerial view, blowdown and Fawn Lake. Note Mount St. Helens in the background. Note too USGS scientists in small boat on the lake taking water samples.
USGS Photograph taken on October 28, 1980, by Lyn Topinka.
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MSH80_blowdown_obscurity_lake_07-06-80.jpg
Aerial view, blowdown and Obscurity Lake, northeast of Mount Margaret.
USGS Photograph taken on July 6, 1980, by Rick Hoblitt.
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MSH81_blowdown_singe_SFToutle_08-14-81.jpg
Blowdown in the South Fork Toutle drainage, with singed area in middle. Note green of new plants growing.
USGS Photograph taken on August 14, 1981, by Lyn Topinka.
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MSH82_smith_creek_blowdown_singe_green_04-26-82.jpg
Blowdown, singed trees, and green trees, in the Smith Creek drainage.
USGS Photograph taken on April 26, 1982, by Lyn Topinka.
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02/28/11, Lyn Topinka