Photo by Liuhyuh Liao via Google Maps
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About Bumpass Hell
Lassen Volcanic National Park's largest hydrothermal area—a boardwalk-accessible moonscape of boiling mud pots, fumaroles, and superheated pools. Named for a settler who burned his leg breaking through the thin crust, Bumpass Hell is strictly a viewing destination but among the most dramatic geothermal sites in California.
Access
Moderate hike
Overnight
No
Clothing Optional
No
Features
Water Minerals
Frequently Asked Questions
- What is the water temperature at Bumpass Hell?
- The water temperature at Bumpass Hell is 239°F.
- How much does Bumpass Hell cost?
- Bumpass Hell costs $30 park entry per person.
- Is Bumpass Hell clothing optional?
- No, Bumpass Hell requires swimwear.
- What minerals are in the water at Bumpass Hell?
- The water at Bumpass Hell contains Sulfur, Silica, Iron, Aluminum.
- How difficult is it to get to Bumpass Hell?
- Bumpass Hell has a moderate difficulty level with moderate hike access.
Recent Google Reviews
"A Must-See Hike in Lassen Volcanic National Park! Bumpass Hell is a fantastic hike and one of the highlights of Lassen Volcanic National Park. The trail offers incredible geothermal features—bubbling..."
"This has to be the most popular hike in Lassen Volcanic National Park by far. We got here around 3pm the Sunday of Labor Day weekend on our way out of the park after summiting Lassen Peak. There were ..."
"Bumpass Hell is a fantastic hike with good thermal activity. The hike is at high elevation so the trail usually doesn’t open until July (sometimes as late as August) and closes late October early Nove..."
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