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125 Years of Science for America - 1879 to 2004
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Mount St. Helens

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Scientist installing antennia mask for GPS monitoring station.
USGS Scientist installing antennia mask for GPS monitoring station. USGS photograph taken on 27 September 2004 by Stephanie Konfal.
Scientists installing GPS unit Mount St. Helens
USGS Scientists installing GPS unit Mount St. Helens to monitor any ground movement. USGS photograph taken on 27 September 2004 by Stephanie Konfal.
Dan Dzurisin GPS station on the east flank of Mount St. Helens.
U.S. Geological Survey scientist Dan Dzurisin at a Global Positioning System (GPS) station on the east flank of Mount St. Helens (station Southeast Ridge). Mount Adams volcano is visible in the distance. More than a dozen GPS stations have been installed on or around Mount St. Helens to measure any deformation of the ground surface that might accompany an intense swarm of earthquakes that began on September 23. USGS photograph taken on 29 September 2004 by Mike Poland.
Oblique aerial photograph of north flank, crater, lava dome and new glacier (behind dome), Mount St. Helens, Washington.
Oblique aerial photograph of north flank, crater, lava dome and new glacier (behind dome), Mount St. Helens, Washington state, USA. USGS photograph taken on 26 September, 2004 by John S. Pallister.

Western side of Mount St. Helens crater, and dome, showing the glacier forming at the base of the dome. USGS photograph taken on 27 September 2004 by Steve Schilling.
Mount St. Helens satellite image taken on September 28, 2004
Mount St. Helens satellite image taken on September 28, 2004
Mount St. Helens crater and dome as seen from SugarBowl.
Mount St. Helens crater and dome as seen from SugarBowl, on the NE flank of the volcano. USGS photograph taken on 28 September 2004 by Mike Poland and Dan Dzurisin.
Aerial view of Mount St. Helens crater and dome.
Aerial view of Mount St. Helens crater and dome. USGS photograph taken on 29 September 2004 by Mike Poland and Dan Dzurisin.
Western side of Mount St. Helens crater, and dome, showing the  glacier forming at the base of the dome.
Western side of Mount St. Helens crater, and dome, showing the glacier forming at the base of the dome. USGS photograph taken on 29 September 2004 by Mike Poland and Dan Dzurisin.
Plume from Johnston Ridge Observatory.
Plume from Johnston Ridge Observatory. USGS photograph taken on October 1, 2004, by Gene Iwatsubo.
Crater and Plume image Mount St. Helens.
Crater/Plume image Mount St. Helens. USGS photograph taken at 12:13:01 PDT on October 1, 2004, by John Pallister
Crater and Plume image Mount St. Helens.
Crater/Plume image Mount St. Helens. USGS photograph taken at 12:03:32 PDT on October 1, 2004, by John Pallister
Ash on west crater floor and wall.
Ash on west crater floor and wall. USGS photograph taken on October 1, 2004, by Steve Schilling.
  Image captured from the USGS/USFS Mount St. Helens VolcanoCam.  Selecting this image leaves the USGS web site and goes to http://www.fs.fed.us/gpnf/volcanocams/msh/
Image captured from the USGS/USFS Mount St. Helens VolcanoCam, located approximately 5 miles north northwest of the peak. USGS/USFS photograph taken at 12:09:01 PDT on October 1, 2004. To view images from VolcanoCam go to http://www.fs.fed.us/gpnf/volcanocams/msh/

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