89 to Southwest Entrance. The three other entrances ... and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

It’s located in the town of Mill Creek, just outside of the main entrance of Lassen Volcanic National Park. The park is ...

Mount Lassen, the southernmost active volcano in the Cascade Range and a favorite for backcountry adventurers, is bracing for up to 10 feet of snow as a bomb cyclone slams Northern California. Major ...