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Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States.

Mount St. Helens - Wikipedia

en.wikipedia.org/wiki/Mount_St._Helens

Mount St. Helens or Louwala-Clough is an active stratovolcano located in Skamania County, ... Age of rock, < 40,000 yrs. Mountain type, Active stratovolcano.

Mount St. Helens - Facts and Figures

www.ngdc.noaa.gov/hazard/stratoguide/helenfact.html

Location: State of Washington, USA Latitude and Longitude: 46.2º N, 122.2º W, Elevation: 2,549 m (8,363 ft) Volcano Type: Stratovolcano Earliest Eruption: ...

Mount St. Helens: Facts about deadliest U.S. volcanic event 35 ...

www.usatoday.com/story/news/nation-now/2015/05/15/mount-st-helens-eruption-35-anniversary/27170663/

May 15, 2015 ... Thirty five years ago, Mount St. Helens erupted in Washington, spewing ash, rock and hot gases into the air and causing mud to flow down the ...

The Volcanoes of Lewis and Clark - Mount St. Helens - Summary

volcanoes.usgs.gov/observatories/cvo/Historical/LewisClark/Info/summary_mount_st_helens.shtml

Jan 5, 2016 ... Geologists call Mount St. Helens a composite volcano (or ... Although Hawaiian- type eruptions may destroy property, they rarely cause death or ...

Mount St. Helens Eruption: Facts & Information - Live Science

www.livescience.com/27553-mount-st-helens-eruption.html

Feb 28, 2013 ... Mount St. Helens erupted on May 18, 1980. The volcano, located in southwestern Washington, used to be a beautiful symmetrical cone about ...

May 18, 1980 Mount St. Helens - USGS: Volcano Hazards Program ...

volcanoes.usgs.gov/volcanoes/st_helens/st_helens_geo_hist_99.html

Aug 27, 2015 ... USGS: Volcano Hazards Program - Cascades Volcano Observatory USGS Volcano Science Center Mount St. Helens geology and history ...

How Volcanoes Work - the Mt. St. Helens eruption - SDSU Geology

www.geology.sdsu.edu/how_volcanoes_work/Sthelens.html

The 1980 eruption of Mt. St. Helens is the most studied volcanic eruption of the .... underlying magma reservoir resulted in the waning of Plinian-type eruptions.

Mount St. Helens Fast Facts - CNN.com

www.cnn.com/2013/07/26/us/mount-st-helens-fast-facts/

May 3, 2016 ... View the Mount. St. Helens Fast Facts on CNN and learn more about the volcano in the Cascade Mountains in Washington state.

Mount St. Helens | Volcano World | Oregon State University

volcano.oregonstate.edu/Mount_St_Helens

Prior to 1980, Mount St. Helens formed a conical, youthful volcano sometimes known as the Fuji-san of America. During the 1980 eruption the upper 400 m of ...