With over 150 miles of hiking trails, both day hiking and backpacking are popular summer activities. Don't miss Lassen's active hydrothermal areas including Sulphur Works and Bumpass Hell. Note that due to snow pack, the Bumpass Hell trail usually does not open until early to mid-July. The summer is season is also a great time to enjoy ranger-led programs and special events. To help plan your summer visit, view sample summer itineraries or read the summer edition of the Peak Experiences, the park newspaper.
Sulphur Works|Bumpass Hell. Lassen's active hydrothermal areas|Sulphur Works|Bumpass Hell. ranger-led programs
Sulphur Works|Bumpass Hell. Lassen's active hydrothermal areas|Sulphur Works|Bumpass Hell. ranger-led programs