6S13 - Thomas Mountain

full-limited Icon
4.7/5 (40 reviews)
Anza, California (Riverside County)
Last Updated: 06/06/2023

Trail Information


Thomas Mountain is a 6,800 foot peak in the San Bernardino National Forest. 6S13 Thomas Mountain trail is between Anza to the south and Garner Valley to the north. You will have a wide range of plant life in your offroad 2,400 foot climb from the trailhead. Ranging from the scrub brush at the lower elevations to the sage, yucca, mesquite, manzanita, scrub oak, pine and cedar at the peak. Camping on Thomas Mountain is the highlight of this trail with 10-12 Yellow Post Sites dispersed between 6,400 feet and 6,800 feet. Please respect and watch for the critters that make this their home.

Trail Difficulty and Assessment

Trail Navigation

Trail Reviews

4.7/5 (40)
Visited: 09/23/2023
Difficulty Accuracy: Spot On

Did the trail yesterday with the wife and dog in our 4x4 Sprinter. A couple of parts in the first few sections where a bit rough, but very doable. The sections from the Springs to the road was very easy, just a lot of uphill groups with zero etiquette. The "2" rating is right on.
Visited: 09/02/2023
Difficulty Accuracy: Spot On

This is a new favorite for me. Caught this trail around trail marker 2 after taking Rouse Hill trail. Amazing scenery and looks to be some good camping, though I believe you must reserve the spots online. A couple of side trails are on the way that loop back around, but DO NO enter any side trails with boundary markings. I hate that I have to say that, but people who leave the trail are the reason they get shut down. Other than that it was a great time! Will run again.
Trail Review: 6S13 - Thomas Mountain - Thomas Gasperlin
Trail Review: 6S13 - Thomas Mountain - Thomas Gasperlin
View More Images
Visited: 08/27/2023
Difficulty Accuracy: Spot On

I got a wild hair while camping at Hurkey Creek, and decided to try my hand at this trail in my stock 2wd CRV. There were a few times where I got concerned, but I made it through without any incident. I would make sure that you have decent amount of experience finding the right lines to follow if you are in a stock car. There were a number of ruts that were created from the most recent storm.
Temporary Closure
Rated 5/5
Visited: 07/08/2023
Difficulty Accuracy: Spot On

Trail closed on 7/9/2023 related to prescribed burn. This not listed on the San Bernardino NF alerts and closures web page, but is on their Facebook page. So, once again I need to remember to check Trails Off-road for updates too. I was here in early June and the trails were open and in good shape.
Temporary Closure
Visited: 06/21/2023

Prescribed burns throughout the summer. Active burn today, 2023-06-21, has the trail closed.

From the Community

Start a free trial and get this level of detail on every trail guide
Start Free Trial