|Lassen Volcano was declared a national park in 1916
after it began erupting in 1914. Both composite and cinder cone
volcanoes were found during its eruptive stage. Activity stopped in
1921, and is now considered a dormant volcano.
There are still signs of a hot magma chamber below. In an area
called Bumpusí Hell, you can find bubbling mud and sulfur smelling
steam. Even when the weather is cold, this area is always warm. Mr.
Bumpus, was an early pioneer who decided to have a warm bath. To his
horror, when he jumped in the water it was so hot, he lost his legs! He
survived his own personal hell.