• Lassen Peak from Manzanita Lake

    Lassen Volcanic

    National Park California

  • Lassen Volcanic NP Highway Closed to Through Traffic

    The Lassen Volcanic NP Highway is closed at the Devastated Area (10 miles inside the northwest entrance) and Bumpass Hell parking area (7 miles from the southwest entrance). More »

Natural Features & Ecosystems

Nature and Science

Bumpass Hell hydrothermal area

Lassen Volcanic National Park covers 165 square miles or about 106,000 acres, located in Lassen, Shasta, Plumas and Tehama counties on the southern edge of the Cascade Range in northern California. Nearly 79,000 acres in the park are designated as wilderness area. Lassen Volcanic National Park receives fewer than 400,000 visitors per year. Cinder Cone National Monument and Lassen Peak National Monument were established by proclamation of Theodore Roosevelt on May 6, 1907 to be administered by the U.S. Forest Service. Volcanic eruptions from Lassen Peak in 1914 and 1915 resulted in national publicity. The two monuments and surrounding areas were included in Lassen Volcanic National Park, established in 1916, administered by the National Park Service of the Department of the Interior.

Did You Know?

john muir posing on rock in black and white photo

John Muir visited Lassen Volcanic National Park and wrote about his experience in the book Mountains of California.  "Miles of its flanks are reeking and bubbling with hot springs, many of them so boisterous and sulphurous they seem ever ready to become spouting geysers..."