Audio Tour
Lassen National Park
10stops
Listen — all 10 stops free
1
Four Volcano Types in One Park
Kohm Yah-mah-nee Visitor Center
Lassen Volcanic National Park is the only place in the world where all four types of volcanoes exist within a single area: shield, composite, cinder cone, and plug dome.
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2
Ancient Volcano's Heart Still Beats Here
Sulphur Works
You're standing at the volcanic center of Mount Tehama, a stratovolcano that once rose to roughly 3,400 metres before collapsing around 350,000 years ago.
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3
World's Largest Plug Dome Volcano
Lassen Peak Trailhead
Lassen Peak is the largest plug dome volcano on Earth.
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4
Bumpass Hell and Big Boiler's Extreme Heat
Bumpass Hell
Big Boiler, the fumarole near the far end of this basin, has been measured at around 161 degrees Celsius, making it one of the hottest fumaroles on Earth.
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5
Lake Helen Stays Frozen Most of Year
Lake Helen
Lake Helen typically holds ice until July and can freeze again by October, making it one of the longest-frozen lakes in California.
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6
Where Lassen's Blast Leveled Everything
Devastated Area
In May 1915, Lassen Peak produced a massive lateral blast that flattened every tree within several square kilometres.
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7
Loomis Museum and Manzanita Lake Origins
Manzanita Lake & Loomis Museum
Manzanita Lake exists because of a massive rockfall.
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8
Youngest Volcanic Domes in the Park
Chaos Crags and Chaos Jumbles
The Chaos Crags formed only about 1,100 years ago, making them the most recent volcanic features in Lassen Volcanic National Park.
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9
Cinder Cone and the Dammed Landscape
Cinder Cone & Fantastic Lava Beds
Cinder Cone's eruption around 1666 completely rearranged the drainage of this entire area, sending lava flows that blocked creeks and created both Butte Lake and Snag…
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10
Devil's Kitchen Hydrothermal Chaos Below
Devil's Kitchen
Devil's Kitchen sits on a fault line where two distinct volcanic heat sources overlap, making its chemistry unusually varied for a single hydrothermal area.
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Listen — all 10 stops free
1
Four Volcano Types in One Park
Kohm Yah-mah-nee Visitor Center
Lassen Volcanic National Park is the only place in the world where all four types of volcanoes exist within a single area: shield, composite, cinder cone, and plug dome.
0:00
2
Ancient Volcano's Heart Still Beats Here
Sulphur Works
You're standing at the volcanic center of Mount Tehama, a stratovolcano that once rose to roughly 3,400 metres before collapsing around 350,000 years ago.
0:00
3
World's Largest Plug Dome Volcano
Lassen Peak Trailhead
Lassen Peak is the largest plug dome volcano on Earth.
0:00
4
Bumpass Hell and Big Boiler's Extreme Heat
Bumpass Hell
Big Boiler, the fumarole near the far end of this basin, has been measured at around 161 degrees Celsius, making it one of the hottest fumaroles on Earth.
0:00
5
Lake Helen Stays Frozen Most of Year
Lake Helen
Lake Helen typically holds ice until July and can freeze again by October, making it one of the longest-frozen lakes in California.
0:00
6
Where Lassen's Blast Leveled Everything
Devastated Area
In May 1915, Lassen Peak produced a massive lateral blast that flattened every tree within several square kilometres.
0:00
7
Loomis Museum and Manzanita Lake Origins
Manzanita Lake & Loomis Museum
Manzanita Lake exists because of a massive rockfall.
0:00
8
Youngest Volcanic Domes in the Park
Chaos Crags and Chaos Jumbles
The Chaos Crags formed only about 1,100 years ago, making them the most recent volcanic features in Lassen Volcanic National Park.
0:00
9
Cinder Cone and the Dammed Landscape
Cinder Cone & Fantastic Lava Beds
Cinder Cone's eruption around 1666 completely rearranged the drainage of this entire area, sending lava flows that blocked creeks and created both Butte Lake and Snag…
0:00
10
Devil's Kitchen Hydrothermal Chaos Below
Devil's Kitchen
Devil's Kitchen sits on a fault line where two distinct volcanic heat sources overlap, making its chemistry unusually varied for a single hydrothermal area.
0:00