• Lassen Peak from Hat Creek

    Lassen Volcanic

    National Park California

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  • Park highway under construction near Sulphur Works

    Road crews are working to repair the road near Sulphur Works hydrothermal area. Road will be open, with one-way controlled traffic at Sulphur Works, during the Memorial Day weekend (5/24-5/27).

Explore the Undiscovered

Lassen Volcanic National Park is home to smoking fumaroles, meadows freckled with wildflowers, clear mountain lakes, and numerous volcanoes. Jagged peaks tell the story of its eruptive past while hot water continues to mold the land. Lassen Volcanic offers opportunities to discover the wonder and mysteries of volcanoes and hot water for visitors willing to explore the undiscovered.

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Did You Know?

View of devastated area from Main Park Road.

The 29 mile Main Park Road was constructed between 1925 and 1931, just 10 years after Lassen Peak erupted.  Near Lassen Peak the road reaches 8512 feet, making it the highest road in the Cascade Mountains.  It is not unusual for 40 feet of snow to accumulate on the road near Lake Helen.