Global Volcanism Program | Image GVP-03258
Lassen Peak, rising above Manzanita Lake on the NW, is the focal point of the Lassen volcanic center, a concentration of volcanic features covering much of Lassen National Park. The massive lava dome forming Lassen Peak was constructed about 25,000 years ago and was the site of California's most recent eruption during 1914-1917. Chaos Crags, a lava dome complex on the north flank, and the aptly named Cinder Cone to the NE, have also erupted within the past 1200 years.
Photo by Dave Wieprecht, 1995 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.