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.

Discovering Bumpass Hell, Chaos Jumbles, and the Many Marvels of Lassen Volcanic National Park. I try not to run, if at all possible. I’d love to say that I’m signed up for every 10K in the state and ...

Tucked away in far northeastern California, Lassen offers sweeping grandeur and hydrothermal marvels in an uncrowded, contemplative atmosphere. The park is home to more than 40 volcanoes, bubbling ...

and unbelievable geology, Snow Canyon is Utah's answer to California's better-known Lassen Volcanic National Park. Though it doesn't get quite the attention of California's main national parks ...