The California Bucket List: Your daily guide to the best adventures and experiences in the Golden State

19. Lassen Volcanic National Park, California

Lassen Peak, which last erupted in 1915, is the largest of more than 30 volcanic domes in the park, which is about 165 miles north of Sacramento. Hissing fumaroles (steam vents) and boiling mud pots from those volcanoes continue to shape the park's landscape. Though the climate is unpredictable, summer, with its warm, dry weather, may be the best time for a visit. Visitors in 2009 (through August): 266,721 More info: Pictured: Boiling Springs Lake
Russell Virgilio / National Park Service
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