Lassen Volcanic National Park brings together steaming fumaroles, volcanic peaks, clear mountain lakes, meadows, and dark lava landscapes in northern California. It is one of the few places where all four major volcano types can be found, making the park a living classroom in geology and earth science. Forests, wildflowers, and high-country trails soften the dramatic evidence of the region’s volcanic past. Explore the fiery landscape with a cool Lassen Volcanic shirt from our officially licensed collection.