When and why did lassen become a national park?

- Lassen Volcanic National Park was established on August 9, 1916, in northern California to preserve the area's unique geothermal activity and volcanic features.

Why did Lassen become a national park?

- The park was created to protect the area's:

- active volcanoes

- boiling springs

- bubbling mud pots

- sulfur vents

- other hydrothermal features associated with volcanic activity.

- Lassen Peak

Lassen is considered to be one of the most seismically active regions in the United States.