Lassen’s Devastated Area - California’s Newest Rocks

Accessible Path: Yes (compacted gravel)

Mileage: 0.25mile loop

View of Lassen Peak from the Devastated Area Pathway

Lassen Peak is the southern most volcano in the Cascade Range and has long been known as Kohm-Ya-Ma-Nee, or Snow Mountain, to the native peoples of the upper Sacramento Valley. It reaches more than 10,000 feet into the sky and snow can be seen on the mountaintop year-round, even in the sweltering heat of summer. In May of 1915, however, this slumbering snow-capped giant exploded in a violent display of volcanic power, sending rock and ash into the surrounding landscape, devastating the area.

Just before the eruption, rock formed in the heart of the volcano making it the newest rock in California. Today the rock created within Lassen Peak is strewn about the landscape and you can see it for yourself in the Devastated Area portion of the park.

One of California's Newest Rocks Along the Pathway

In contrast to its name, today the Devastated Area is actually quite pleasant. New trees reach skyward, reclaiming the land for the forest. The accessible pathway meanders through these trees, offering glimpses of the mountain as you make your way through.

From the parking lot, an interpretive sign marks the beginning of the pathway. These signs are scattered along the path, providing insight into the eruption and the rock that dots the landscape. The path itself is a relatively short loop, wandering through the trees and passing by huge rocks. It is a great short hike that provides insight into the eruption, showcasing the power of the earth and its capacity for destruction and creation.

Accessible Pathway Wandering Through the Trees