6S13 - Thomas Mountain

4.7/5 (29 reviews)
Anza, California (Riverside County)
Last Updated: 11/13/2020
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Trail Information

Highlights

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 (29 reviews)
Status: Open
Rated 3/5
Visited: 11/01/2022
Difficulty Accuracy: Spot On

The rating is spot-on. It's not very technical but there are a lot of ruts, narrow areas, and shelf roads along the trail. I didn't find it to be a particularly enjoyable or memorable trail. It is not very distinct from most other California "mountain" trails which meander through chaparral until near the summit and then you encounter a small smattering of pine trees. The yellow post campsites are full of broken glass and bullet shells as you would expect. And yes, there were long-term 'campers' that have moved in to the best sites at the peak on a Tuesday morning in November. Don't forget the 14-day camping limit fellows! I'm sure they'll be packing up on day 13 to allow for other campers to experience the giant cell tower and chainlink fence next to yellow post site 3.
Tommy
1500
Status: Temporary Closure
Visited: 09/18/2022

Temporary closure due to Fairview fire. See photos for more info. Cal Fire fireman said could be open by Sept 28, signs say Oct 2. Lots of Cal Fire activity and most of the trails in this area are closed as of now. Hopefully will be open soon! Id wait to visit until mid-October, sounds like it should definitely be open again by then!
Trail Review: 6S13 - Thomas Mountain - Tommy
Trail Review: 6S13 - Thomas Mountain - Tommy
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Status: Open
Rated 5/5
Visited: 07/08/2022
Difficulty Accuracy: Spot On

I ran this trail from the South. It is pretty spot on on the difficulty, I ran it in 2WD the entire way. Since it was a weekday, we only ran into a couple other people on the trail and the campsites were empty. The peek a boo views of Lake Hemet to one side and the valley on the other were great to see.
Status: Open
Rated 5/5
Visited: 02/20/2022
Difficulty Accuracy: Easier

Just went up to toolbox yellow post. Very mellow and easy to run in my 2wd sprinter van. Some control burning just occurred so a bit smokey smelling
Trail Review: 6S13 - Thomas Mountain - Jonathan Montague
Trail Review: 6S13 - Thomas Mountain - Jonathan Montague
Status: Open
Rated 5/5
Visited: 07/16/2021

Great easy trail with lots of camping! Ran from south-north and stopped for a couple nights at the peak of Thomas Mountain. If you're going up for the weekend, do yourself a favor and go to the very peak to see if any of the three Yellow Post sites are available. The trail leading up there will stop most low-clearance vehicles, but if you have a stock SUV or truck, you'll be able to navigate the hill without trouble. The trail itself looked/felt like with was recently graded and was a pleasure to drive through. Only the bit to get to the very peak would prevent a low vehicle from going through, but it's not necessary to run this to do the whole trail. The Yellow Post sites are open and there are toilets at the Toolbox Springs Campground, but better sites can be had nearer the peak (or on the peak!) It's pleasant during the day (80F) at the peak and comfortable at night when camping. The flies that are around don't bite, but they do buzz around your head constantly. Pictures are of Yellow Post 5 and 4 (where I camped), two of the three YP sites at the peak.
Trail Review: 6S13 - Thomas Mountain - Blackwood S
Trail Review: 6S13 - Thomas Mountain - Blackwood S

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