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3.1 miles
Distance
291 ft
Climb
-1,058 ft
Descent
03:42:04
Avg time
-768 ft
Altitude change
7,418 ft
Altitude min
8,391 ft
Altitude max
8,187 ft
Altitude start
7,418 ft
Altitude end
-4.7%
Grade
-31.5%
Grade max
20.3%
Grade min
1 mile
Distance climb
2 miles
Distance down
1,053 ft
Distance flat
03:42:04
Avg time
Bumpass Hell Details
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Activities
- Hike
- Trail Running
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Riding AreaLassen Volcanic National Park
Redding, California -
Difficulty Rating
-
Local Popularity100 in Hiking [+]
- 50 in Trail Running
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Global Ranking
-
Hiking SAC ScaleT1 Hiking
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Trail TypeSingletrack
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DirectionBoth Directions
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Climb DifficultyGreen
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Physical RatingModerate
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Trail VisibilityAlways easy to follow
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Family FriendlyYes
Bumpass Hell is the largest hydrothermal area in the park and marks the principal area of upflow of steam and discharge from the Lassen hydrothermal system. The temperature of high-velocity steam jetting from Big Boiler, the largest fumarole in the park, has been measured as high as 322°F (161°C), making it one of the hottest fumaroles in the world. The steam heated waters are typically acidic and are not safe, even for bathing
source: https://www.nps.gov/
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 1 rides
- 7 miles average
6 Months
- 2 rides
- 5 miles avg distance
All
- 27 rides
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
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Trail Conditions
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- Prevalent Mud
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Directions to bumpass-hell trailhead
(40.466110, -121.514080)
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Articles
The Best Road Trips to Take This Summer Across the U.S.
Jul 3, 2025 from outsideonline.com
An expert roadtripper's guide to the best American road trips based on their proximity to adventure—from fly fishing holes to flowy singletrack...
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Nearby Trails
- Lassen Peak Trail 1 mile
- Bumpass Hell Alternate 1 mile
- Bumpass Hell Boardwalk 1 mile
- Ridge Lakes 3 miles
- Mill Creek Falls 3 miles
Lassen Volcanic National Park
- By todd
Trailforks & contributors - #243499 - 1,279 views
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Frequently Asked Questions About Bumpass Hell
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Where is Bumpass Hell located?
Bumpass Hell is located in Lassen Volcanic National Park, Redding, California, United States. It is part of the Lassen Volcanic National Park trail network. The trailhead is located at coordinates 40.46611, -121.51408.
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How hard is Bumpass Hell?
Bumpass Hell is rated as Blue difficulty. The physical rating is Moderate. The average grade is 4.7%. The climb difficulty is rated Green.
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What is the elevation gain for Bumpass Hell?
Bumpass Hell has 291 ft of elevation gain. The trail has 1,058 ft of elevation descent. The elevation ranges from 7,418 ft to 8,391 ft.
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Is Bumpass Hell a point to point trail?
Bumpass Hell is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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