Hiking Guide. Local Weather. Email Newsletter. Bernard Lodge. Copyright St. Bernard Lodge Developed by Logan Marketing. Call US. Most noticeable are several large hot pools, gray-blue in color and up to 50 feet across, often with simmering, bubbling water in places. There are also many mudpots of varying viscosity; some are quite thin and effervesce vigorously whereas the less active ones have the consistency of treacle and plop every few seconds.
Other features include small water fountains, steaming soil, noisy fumaroles sulphurous steam vents and run-off channels with warmish acidic water, edged by colorful mineral deposits.
On the opposite side of the boardwalk, West Pyrite Pool is a calmer but prettier spring containing turquoise water, surrounded by mostly white rocks colored yellow and brown by iron and sulfur.
All the springs produce enough water to form a small stream Bumpass Creek , which after exiting the basin flows steeply southwards through a narrow, inaccessible ravine lined with other thermal vents.
Bumpass Hell contains around 75 active features but many are either small or not properly visible from the path, so it doesn't take long to tour the area. Yellow lichen. Geothermal Features Bumpass Hell, and Lassen Volcanic National Park in general, has three of the four main types of geothermal feature fumaroles, mudpots and hot springs ; the only phenomena missing are geysers, since these require rather specific conditions of rock type, sub-soil temperature and water depth.
They are however found in great abundance in the remarkable Yellowstone National Park in Wyoming, which also has much more of every other type of thermal activity, but Lassen has a greater sense of tranquility, is more compact and has the added attraction of volcanic features. The bonus to the geologic wonders was another critter sighting as we spotted a mule deer doe on the opposite hillside working her way through the boulders.
After taking in the view at the elevated vantage point we retraced our steps to the point where the trial spit and took the branch leading out to the boardwalk. The boardwalk provides excellent access to the thermal features. There is a main walk that traverses across the entire area as well as a spur that extends out into the middle of the thermal and allows for additional up-close views of some of the features as well as nice overall perspectives of the area in general.
This is not a huge area, certainly not as big as the main thermal areas in Yellowstone, but it is still impressive. Bumpass tied to the place is appropriate with the steaming pools, bubbling mud pots, the rumbling and grumbling from the thermal features and of course the sulphurous odor.
But at the same time, Bumpass Hell has a beauty to it. The colors in the pools and on the rocks are quite striking, particularly when contrasted with the green of the surrounding trees and the brilliant blue sky. Bumpass Hell brings all the senses into play. It is not a loud area, but it is certainly part of the character of the place.
As for feel, we get that as well when we made it to the far end of the boardwalk. Lynn and I were standing there alone, leaning on the railing and we could feel the vibrations caused by the subterranean hydrothermal activity.
It really is an amazing place. It is as if it were alive, and I reckon it sort of is. Around , give or take, we left Bumpass Hell and retraced route back to the trailhead. Returning on the same trail but facing the opposite direction gave us an opportunity to see things that we missed in the inward hike or just provides a new perspective on a view that we did take in different lighting later in the morning or a new viewing angle.
It was a pleasant return. The sky was still bright blue and still held a collection of cumulus clouds, just fluffy white cotton balls with no threat of rain. What a great hike! Wonderful views along the trail then the other worldly spectacle of Bumpass Hell at the end of the trail. This one gets very high marks.
It took us right at 2 hours to complete the 3-mile hike, so we were back at the trailhead a little after I recommend putting this hike at the top of your list when visiting Lassen Volcanic National Park. Fascinating Geothermal landscape. We hiked the Bumpass Hell trail on July 31st, The temperature was around 80 degrees and piles of snow still dotted the area.
The trail itself is relatively easy and very well maintained. It was quite busy but that was to be expected. If you are sensitive to strong odours then be prepared for an onslought of sulpher.
Bumpass comes complete with bubbling ponds and hot running streams. The gurgeling coloured mud was also a treat. I measure some of the water at degrees so take care to stay on the boardwalk or you will surely get a severe burn.
A very exciting and rewarding hike! Pambers1 Fremont, CA 18 contributions. Bumpass Hell is a great hike. It's just a short 1. It was already the beginning of August, but we still had to cross a patch of snow to get to our destination!
The very last part of the hike is a little steep, but not too bad if you take it slowly. It gets hot there, so it's best to do this trail in the morning. It was really fun walking on the boardwalk and checking out the steam vents and boiling mud. Great Hike, but not so great with young kids.
Though most places rate this hike as "moderate", its pretty tough to do with kids 5 and under and almost impossible to do with a stroller. First, the hiking trail is exposed to about feet drops at several stretches. Second, the final leg of the trail is a pretty steep downhill to the sulphur vents and pools, and the trail itself is covered in smooth powdery sand.
So you skid along many times and it only gets tougher climbing up on the way back. But having said that, its a must do trail in Lassen, if you are fit enough for it. Alternate hike to Bumpass Hell is the way to go!! When we arrived at Lassen, we were disappointed to learn that the trail to Bumpass Hell is closed for renovations.
But determined to find away to Bumpass Hell, we looked for an alternate trail. The temperature of the high-velocity steam emitted from Big Boiler , the largest fumarole in the park, has been measured to be as hot as degrees Fahrenheit, making it one of the hottest fumaroles in the world. When planning your visit, keep in mind that during winter, the higher elevations of Lassen can get up to 30 feet of snow. The best time to visit the park is between July and October.
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