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Mount Saint Helens
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Mount Saint Helens Mount Saint Helens Mount Saint Helens
Watch the volcanic eruption of Mount Saint Helens and subsequent flooding caused by melted glaciers
Mount Saint Helens Mount Saint Helens
How volcanoes work, explained by a volcanologist
Mount Saint Helens Mount St. Helens volcano Mount St. Helens eruption.
Quizzes
Blue Ridge Mountains. Blue Ridge Parkway. Autumn in the Appalachian Mountains in North Carolina, United States. Appalachian Highlands, Ridge and Valley, The Appalachian Mountain system
All About Mountains Quiz
Read Next
Mount Saint Helens (Cascade Range, southwestern Washington) spewing ash during the 1980 eruption.; Mount St. Helens
35th Anniversary of Mount Saint Helens Eruption
Arenal Volcano in northwestern Costa Rica in the province of Alajuela.
Are Volcanoes Dangerous When They’re Not Erupting?
Bear Hat Mountain above Hidden Lake on a crest of the Continental Divide in Glacier National Park, Montana
Exploring 7 of Earth’s Great Mountain Ranges
Volcanic eruption of a volcano near Antigua, Guatemala
What Causes a Volcano to Erupt?
Denali (Mount Mckinley), Denali National Park, Alaska.
7 (or 8) Summits: The World’s Highest Mountains by Continent
Discover
Demystified - Do Lemmings Really Commit Mass Suicide? illustration
Do Lemmings Really Commit Mass Suicide?
Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,
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King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
Panoramic view at sunrise of moai, Ahu Tongariki, Easter Island (Rapa Nui), Chile
6 Lost Civilizations
Apollo 12 astronaut Charles "Pete" Conrad stands beside the U.S. flag after is was unfurled on the lunar surface during the first extravehicular activity (EVA-1) Nov. 19, 1969. Footprints made by the crew can be seen in the photograph.
How Many People Have Been to the Moon?
Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.
12 Greek Gods and Goddesses
A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England
Inventors and Inventions of the Industrial Revolution

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Mount Saint Helens
Mount Saint Helens
Mount Saint Helens
Mount Saint Helens
Mount Saint Helens
Mount Saint Helens
Mount St. Helens volcano
Mount St. Helens eruption.
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Earth scientists setting up equipment to monitor changes on the slopes of Mount Saint Helens, Washington, U.S.
Watch the volcanic eruption of Mount Saint Helens and subsequent flooding caused by melted glaciers
How volcanoes work, explained by a volcanologist
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Related Topics and References

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Related Quizzes and Features

Quiz
Blue Ridge Mountains. Blue Ridge Parkway. Autumn in the Appalachian Mountains in North Carolina, United States. Appalachian Highlands, Ridge and Valley, The Appalachian Mountain system
All About Mountains Quiz
Demystified
Arenal Volcano in northwestern Costa Rica in the province of Alajuela.
Are Volcanoes Dangerous When They’re Not Erupting?