National park · California
Lassen Volcanic National Park
One of the only places on Earth with all four volcano types in one park, anchored by Lassen Peak — which erupted as recently as 1915 and left behind bubbling mudpots, fumaroles, and the boiling springs of Bumpass Hell.
- Entrance
- $30 private vehicle
- Hours
- Open 24 hours daily Entire park, all entrances
- Established
- August 9, 1916
- Region
- California
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History
Lassen Volcanic National Park is notable for being one of the few places in the world with all four types of volcanoes. It was established following significant volcanic activity, which highlighted its geological importance and beauty.
Key events
- The park was initially designated as two national monuments by President Theodore Roosevelt in 1907.
- A series of eruptions occurred from 1914 to 1921, leading to the establishment of the national park.
- The park experienced the largest wildfire in its history, the Dixie Fire, in 2021, burning approximately 69% of its area.
- The Main Park Road, the highest road in the Cascade Mountains, was constructed between 1925 and 1931.
Trails
- Lassen Peak Trail 5 mi · Hard
- Bumpass Hell Trail 3 mi · Moderate
- Brokeoff Mountain Trail 7.4 mi · Hard
- Mill Creek Falls 3.8 mi · Moderate
- Manzanita Lake Trail 2 mi · Easy
Plan your visit
Hours · Entire park, all entrances
Open 24 hours, every day
The park is always open. Road access is limited during the winter season, approximately November through May, due to snow.
Entrance fees
- Private Vehicle $30
- Motorcycle $25
- Per Person $15
- Education/Academic Groups Free
Fees and hours as of May 2026. Check current details on NPS.gov
When to go
- Summer. All roads and trails open, best hiking, ranger programs
- Fall. Fewer crowds, fall colors, geothermal still active
- Winter. Snow activities, limited access but serene
- Spring. Wildflowers at lower elevations, snow lingers higher up