A 20-foot-high wall of mud, ash, and melted snow roared down the mountain, snapping tree trunks ... dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

the area was designated a national monument in 1906 and a national park more than a half century later. If you are traveling west on I-40, exit into park. When leaving the south end of park ...

For great hiking and views near San Francisco, head to this state park with misty redwood trails, plenty of campsites and cabins, and sweeping ocean vistas.

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Cloudy. Slight chance of a shower, becoming less likely this morning. Winds south to southeasterly 15 to 25 km/h becoming light in the late evening. Daytime maximum temperatures between 9 and 14.