Lassen Peak
CountryUSA
TypeLava dome
Elevation3187 m
Last Eruption1917
About Lassen Peak
The southernmost active volcano in the Cascades. The 1915 eruption was the first in the Cascades since Mount St. Helens. It produced a massive lahar and devastated a 6 km2 area. Lassen Volcanic National Park contains all four types of volcanoes.
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