Happy 100th birthday to Lassen Volcanic National Park! Underneath this California park’s serene surface lies magma, which creates volcanoes and hydrothermal features like boiling pools, gurgling mudpots and steaming ground. Lassen Volcanic is one of the only places in the world where you can see all four types of volcanoes – you can even hike each type! Sunset photo courtesy of Beth Young.
Sig Nordal 
I’d never heard of Lassen VNP. Looks like incredible hiking country with a hint of danger to add spice.
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