The eruptions of 1914-1915 utterly transformed Mount Lassen. A 3-mile area around the peak was renamed, succinctly and accurately, Devastated Area. Even today, there are places where the landscape ...

Also known as Lassen Peak, the mountain is the southernmost ... This image dated in 1915 shows the eruption of Mount Lassen as seen from Red Bluff, Calif. The mountain unexpectedly started ...

The last major eruption to occur in California was on May 22, 1915, when Lassen Peak threw lava bombs tens of miles from the summit and ash over 300 miles into Nevada. The nation’s first ...