Two thirds of the world’s geysers are located here at Yellowstone National Park, each with its own unique characteristics. Shown here is the Great Fountain Geyser, which erupts every 9 to 15 hours with sprays that reach 75 feet to over 220 feet in the air. More than just a spectacle, these geysers are evidence of the volcanic activity simmering beneath the surface. Yellowstone’s last major volcanic eruption occurred about 630,000 years ago, and the potential for future activity is the subject of much curiosity—and speculation.
Great Fountain Geyser, Yellowstone National Park, Wyoming
Today in History
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A swim in the sky
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An improbable tribute for Towel Day
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Siblings Day
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It’s Draw a Bird Day
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National Park Week begins
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Burchells zebras for International Zebra Day
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National Napping Day
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Deep in the North Woods wetlands
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National Moon Day
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International Lighthouse Weekend
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Batten down the hatches
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Happy birthday to Crater Lake National Park
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Hallstatt, Austria
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International Day for Monuments and Sites
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Sanxiantai Dragon Bridge in Taitung, Taiwan
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National Pearl Harbor Remembrance Day
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International Day of the Worlds Indigenous Peoples
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Daiichi Tadami River Bridge, Fukushima, Japan
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World Art Day
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The moon rises for Mid-Autumn Festival
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Why’s it called a spelling ‘bee,’ anyhow?
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What does the fox dream?
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Azaleas blooming on Hwangmaesan Mountain, South Korea
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The island fox’s incredible comeback
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Class, please take out a No. 2 pencil…
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A castle fit for a count
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Horseshoe Bend, Arizona
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Observing World Braille Day in Bavaria
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In orbit for Yuri s Night
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Grand Staircase-Escalante National Monument, Utah