• Lassen Peak from Hat Creek

    Lassen Volcanic

    National Park California

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  • Warner Valley Road Work

    There will be paving work on the road connecting Chester to the Warner Valley beginning Monday July 21 or Tuesday July 22 and continuing through July. There may be a 30 min. delay for visitors travelling to Warner Valley and Drakesbad.

Field Trips

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  • Lassen Volcanic National Park

    Hydrothermal Features

    Hydrothermal Features

    Join a ranger at Sulphur Works or Bumpass Hells parking area for an exploration of Lassen's hydrothermal areas.

  • Lassen Volcanic National Park

    Introduction to Lassen

    Introduction to Lassen

    A ranger will meet you at one of many locations throughout the park to provide a brief introduction to Lassen Volcanic National Park.

  • Lassen Volcanic National Park

    Volcanoes of Lassen Demonstration

    Volcanoes of Lassen Demonstration

    This ranger-led program helps students discover all four types of volcanoes, each found at Lassen. Students will learn about the geology and volcanic history of the park.

Did You Know?

reddish color microscopic snow alage

The reddish color sometimes observed on top of snow at Lassen Volcanic NP snow is a living organism called snow algae. When snow begins to thaw, these microscopic organisms spring to life. They function as a primary food source and are being studied for their cancer-fighting properties.