Sulphur Works is a 0.6 mile lightly trafficked out and back trail located near Mineral, California that features a great forest setting and is good for all skill levels. The trail is primarily used for walking and nature trips and is accessible year-round.

Length0.6 miElevation gain252 ftRoute typeOut & back
Kid friendlyNature tripsWalkingForestPavedViewsFeeNo dogs
Description
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Lassen Volcanic National Park charges a fee to enter. Fees are $30 per vehicle or $25 per motorcycle. If you are entering on foot, horse, or bike the fee is $15 per person. During the winter (Dec 1 - Apr 15), entrance fees are $10. You can also purchase a park specific annual pass for $70. Access to the trailhead via Lassen peak Highway closes during the winter months and will reopen in the spring. A short, paved walk where plopping mudpots and smoking steam vents can be seen close to the roadside. Although paved, the sidewalk trail will be too steep for most wheelchair and stroller users without assistance (over 10% most of the way).

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Reviews (88)
Photos (95)
Activities (53)
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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarApril 23, 2021
Hiking

Great little jaunt on snowshoes, without snow, a perfect little walk or drive for the kiddos. Check out my experience visiting Lassen in the winter for more detail: https://youtu.be/OTjJQvISgfM

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMarch 13, 2021
HikingGreat!

Really cool! Like a mini Yellowstone. Short trail and snow was packed down enough to walk on without snowshoes. Visited 2/27.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarFebruary 28, 2021
Nature tripsGreat!Snow

Went when it was snowing . So I rented some snowshoes. Not crowded. Feb 2021

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarFebruary 12, 2021
Hiking

stunning!

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Yellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarGray StarGray StarJanuary 24, 2021

Very cool but the

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJanuary 22, 2021
SnowshoeingGreat!

We cover this trail in the first half of the video. https://www.youtube.com/watch?v=aDPfwqUGTJQ The trail is easy and perfect for first time snowshoeing! Easy access from the visitors center and some epic views!!

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarNovember 26, 2020
SnowshoeingSnow

In the snow when the road is closed, this is a 2 mile out and back trail from the visitor center. Fun little stop, takes about an hour.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarNovember 3, 2020
Scenic drivingGreat!
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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarNovember 1, 2020

Not a trail. Worth 10min

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarOctober 17, 2020
Walking

Short walk along the road to see some bubbling mud pots. Worth the stop.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSeptember 14, 2020
Walking

A few feet from parking lot. Boiling mud pit is worth the quick stop and photo op. Good if you cant make it out to Bumpass Hell trail!

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarAugust 26, 2020
Hiking
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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarAugust 2, 2020
Hiking

This isn’t actually a hike, just a short walk from the parking lot that follows the road. The attractions are viewed from the sidewalk and are the closest you’ll get to a boiling pit unless you go off boardwalk on the bumpass hell trail. I would say it’s still worth a quick stop since it’s such a unique set of landmarks!

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarJuly 4, 2020
Hiking

It’s a super short walk (distance from the parking lot to the entrance of a grocery store). It’s a quick stop on your way to other attractions. It smells really bad.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarNovember 18, 2019
Nature trips

I came to this Sulphur Works again ( 11/17/2019) since I visited the park. No need to hike, just park your car in the parking lot, walk up for few hundred feet and you are there. I love to see hot mud still active. Smoke and smell up to the air at one, I don’t know how hot or warm of the liquid in the pool, I was here last year in summer and the smell of the pool so bad, I think fall season the pool smell must better. I will stop here again when I come back to this park.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSeptember 3, 2019
Hiking

Not really a hike... just right off the road. Still a cool sight to see

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSeptember 2, 2019
Hiking

I hiked the full mile up to the lake, which was quite uphill. If you're looking to conserve energy/time don't hike all that way up (nothing special about the lake up there), but only up to the point where you see a little boiling pond to the right, then back down to the parking lot and across the bridge to the boiling mudpot which was the most impressive active feature I got to see up close. Bumpass hell active features are quite far (I presume for safety), so I wouldn't skip coming here to get a good close look at that boiling mudpot.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSeptember 2, 2019
Hiking

Not a trail...just a stop on the road...a worthy one. Also trailhead for Ridge Lakes Trail ...but I’m out of daylight.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 15, 2019
Scenic driving

This gets a 4... as a road stop to see close volcanic features. No real trail! See below for trail definition. Photo op, look at mud pits for 15 min, then go on to the real hiking.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarJuly 14, 2019
Hiking

Sulfur Works are the volcanic features along Highway 89 (Lassen Peak Highway) and not the trail profiled and shown on the map. What is shown is actually the first 0.6 mile of the Ridge Trail which is a moderatly difficult trail. If a real hike is what you are looking for, I recommend you check that trail out and hike all the way up to Ridge Lakes.

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Yellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarJuly 8, 2019
Scenic driving

I have no idea what people like about this park, and what got it a 5 star rating overall from almost 2k reviews. We wasted the 4th of July long weekend by going there. The park is very far from any accommodation, and only after you get there they tell you that their website is telling a half truth when it says the trails are open.. they are technically open but you have to have snow gear to be able to trek on 4-20 feet deep snow.. melting on sloping trails!! The Sulphur Works is fine but just a quick stop is all what you can do there. The Cinder Cone is in another part of the park that is another hour drive (and back), and the Devil's Kitchen/Boiling Spring Lake/Terminal Geyser trails are in yet a third part of the park that you can only reach by driving on a dirt road after 2 hours of driving around the park in narrow roads with no cell coverage (limited mobile phone GPS). All in all it was a weekend of driving, from San Jose up to the closest place where we could find accommodation (redding), the. In and around the park. Totally NOT worth it.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarOctober 26, 2018
Hiking

Facinating.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarOctober 13, 2018

Awesome mud pots

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSeptember 9, 2018
Walking

No hiking, just walking from your car. A wheelchair would have noooo problem. The boiling mud pit is impressive to say the least and its only about 2 feet from the sidewalk! I saw an elderly woman at the fence near it get blasted with a burst of sulphuric steam and she had to jump back into the road to avoid getting scorched. Her glasses were completely fogged and her hair was damp. Must've smelled great. Be careful.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJune 19, 2018
Walking

No actual trail, a short walk from the parking lot gets you up close with the mudpots. Educational experience for the kids and adults too. Due to Bumpass Hell being closed for repairs this short walk has a great alternative to seeing the mudpots in the area. Easy enough for kids and even witnessed a person in a wheelchair doing the walkway. The sulfur smell isn’t as bad as some say and didn’t bother me, but bothered my husband. Great short walk and would definitely return again in the future

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMay 9, 2018

Very short hike sulfur beds interesting

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarMay 1, 2018
Walking

As others have mentioned, this is a walk near the parking area with some nice informative exhibits and an up close and personal taste [and smell] of volcanic mud pots and ecosystem impacts. Worth a stop.

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarApril 8, 2018
Hiking

Walked up to the sulfur pools in the snow, went sledding

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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSeptember 15, 2017
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Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJune 13, 2017
Scenic driving

furthest point allowed to drive to as of 6/11/17... you can walk the rest of the road bed but undrivable until trees and rocks are removed... i walked about 2 miles up to near Bumpass Hell... pretty sure any offroad hiking must use snowshoes as there is still many feet of snow pack

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