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Lassen Volcanic National Park


Lassen Volcanic National Park in northern California is reminiscent of a smaller Yellowstone National Park in Wyoming.

There are four types of volcanoes in the world and all reside in Lassen Volcanic National Park. Prospect Peak is a shield volcano. Lassen Peak is a plug dome and Cinder Cone is just that. Brokeoff Volcano is a composite volcano.

But it's the unusual hydrothermal features at Lassen Volcanic that most fascinate park visitors and is what makes this region similar to Yellowstone. In the Bumpass Hell section are boiling mud pots, steaming ground, roaring fumaroles, and sulfurous gases, all linked to active volcanism. This is also an active reminder that Lassen holds the possibility of an eruption in the future.

Take your time and enjoy our slideshow of Lassen. We like to take long hikes, camp in the area, and would love for you to join us. One click, and we're off!

Let’s go!

Lisa's book on our early adventures and her tact to balance work life and cave exploration