Four types of volcanoes—shield, composite, cinder cone, and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

Are you planning a Lassen Volcanic National Park itinerary? It was one of those moments when we realized, with ...

In a state with more national ... State Park owes much of its existence to volcanic eruptions millions of years ago. The park boundaries contain the remnants of two ancient cinder cone volcanoes ...