Lassen Peak, the largest plug dome volcano in the world, is joined by all three other types of volcanoes in this park: shield, cinder dome, and composite. Though Lassen itself last erupted in 1915, most of the rest of the park is continuously active. Numerous hydrothermal features, including fumaroles, boiling pools, and bubbling mud pots, are heated by molten rock from beneath the peak.
Leash Laws: Most parks require dogs to be on a leash in some or all areas, however, some parks allow dogs off leash in certain locations, please consult the parks website before going off leash, Thank you!
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Lassen Volcanic National Park Website
Lassen Volcanic National Park Camping
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We do our best to keep all information current and accurate - If you see an error or think we have missed something please contact us directly.