Geothermal areas in Lassen Volcanic National Park, Geothermal areas in Lassen Volcanic National Park, California
The park contains several groups of hot springs, fumaroles, and mud pots spread across various locations including Bumpass Hell and Sulphur Works.
The thermal areas formed over 600,000 years through volcanic activities, with Lassen Peak emerging as a volcanic dome approximately 27,000 years ago.
Native American tribes considered these geothermal zones sacred healing grounds, using the mineral-rich waters for medicinal and ceremonial practices.
Visitors can access Bumpass Hell through a 3-mile round-trip trail during summer and fall months, from June through October.
Big Boiler, the largest fumarole in the park, reaches temperatures of 322°F (161°C), making it one of the hottest fumaroles in the world.
Location: California
GPS coordinates: 40.45810,-121.50200
Latest update: March 2, 2025 21:53
Lassen Peak
3.3 km
Mount Tehama
5.1 km
Chaos Crags
7.5 km
Nobles Emigrant Trail
11.9 km
Loomis Museum
10.1 km
Lassen Volcanic National Park Highway Historic District
4.8 km
Warner Valley Ranger Station
10.3 km
Manzanita Lake Naturalist's Services Historic District
10.1 km
Summit Lake Ranger Station
7.8 km
Hot Rock
8.6 km
Discovery Center
10.2 km
Sulphur Works
3 km
Loomis Ranger Station
10.1 km
Seismograph Building
10.1 km
Kohm Yah-mah-nee Visitor Center
3.5 km
Bumpass Hell
119 m
Manzanita Ranger Residence
10.6 km
Lassen Peak Trailhead
1.8 km
Chaos Jumbles
9.7 km
Lassen Volcanic Center
3.8 km
Kings Creek
13.5 km
Mather Plaque in Lassen Volcanic National Park
10.1 km
Manzanita Kiosk
10.6 km
Summit Lake North Campground
7.8 km
Manzanita Lake Campground
9.5 km
Hat Creek Culvert
6.5 km
Lost Creek Group Campground
11.6 km
Northwest Entrance Checking Station and Ranger Residence
10.6 kmReviews
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