Trail Overview

Uneven, rutted dirt trail with loose rocks and sand. Muddy conditions should be expected during the rainy season. The trail is primarily one vehicle wide with some portions wide enough for passing oncoming traffic. Steep cliffs and drop-offs are common throughout the trail, as well as sharp winding curves. Caution should be taken to avoid oncoming traffic.

Photos of 6S13 - Thomas Mountain Road

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Difficulty

This trail can be generally considered an easy route however, due to blind curves, steep cliffs and weather impacts to the trail should be attempted with caution and consideration for others on the trail.

Technical Rating

Mike D

Jun 20, 2026

Open

Pretty dusty all the way up. A few people driving faster than they should around blind corners. Some sedans chugging their way up causing traffic. Campsites were fairly full at the time but we were lucky enough to score one.

David H

May 31, 2026

Open

Very easy and maintained. Didn't need to switch to 4wd at all on this part. View from the top was great and every campsite was filled with people except a few.

Jerry Hutchins aka "Photojeeper"

May 20, 2026

Open

Aired down at the trailhead, one motorcycle came down as I was airing down. The condition was good, the leftover mud ruts were mostly erased. Road through the Yellow Posts sites were all open. Got a view of Lake Hemet from one of the upper campsites.

Geoffrey Russ

Apr 23, 2026

Open

Trail was a little rough from reason rain. All the yellow post campsites were open except for #6. Amazing weather, little to no bugs, little wind.

tacosASLEEP SD

Apr 18, 2026

Open

Lots of groups up here camping. 2WD all the way up. Managed to get the last spot on the ridge at 5pm on a weekend. Insane views

Bennett Foley

Apr 18, 2026

Open

James Gaddis

Apr 11, 2026

Open

Imrinder Toor

Feb 13, 2026

Open

2wd with high clearance recommended for most of the trail. 4wd needed for the large ruts near the peak. Very cold at night and a bit windy during the day. No standing water or muddy areas at this moment, when entering from the south side.

Derek Rader

Jan 11, 2026

Open

Some large areas of shallow water (4-6”) where its collected on the south - east side and ruts. Toward the peak the ruts were the worst and needed 4WD to be safe. Very windy, but great overall.

Robert Parks

Nov 24, 2025

Open

Trail is in great shape. A few cross rutted sections to slow down for. Nothing a stock 4x4 can’t handle. A few mud puddles, but nothing to worry about. Zero dust, as you’d guess.

David Di palermo

Jul 06, 2025

Open

dusty and busy, with some loose rocks

Peter Schuller

Jun 28, 2025

Open

Armando Guerra

Mar 23, 2025

Open

Antonio Renteria

Mar 15, 2025

Open

Lots of snow and mud. You will need a 4x4 while this mud/snow is here. Nothing technical.

Genevieve Foley

Mar 09, 2025

Open

Very dusty and dry for the first few miles, but plenty of mud and slush once the tree cover got thicker. Lots of snow at the yellow post sites for frolicking.