Horse Mountain - FS 27S11

Total Miles3.3
Technical Rating
5Moderate
Best TimeSummer, Spring, Fall
Trail TypeFull-Width Road
Accessible By
Open Trail Map

Trail Overview

This Sequoia National Forest route climbs over 1,700 feet in just over 3 miles, creating serious sustained elevation gain. Part of the forest system requires green sticker vehicles to meet certain criteria for legal use. Switchbacks help navigate the steep ascent as the terrain gets higher and rougher with bigger ruts and bigger off-camber sections plunging up to 24 inches deep. The trail narrows on a shelf road that becomes increasingly rocky with altitude. Very tight and narrow spots compress the route, creating claustrophobic passages demanding precision.

Photos of Horse Mountain - FS 27S11

Difficulty

That 1,700-foot climb in just over 3 miles means extremely steep sustained grades requiring low range and excellent traction. The bigger ruts and off-camber sections up to 24 inches deep are severe obstacles that will stop many vehicles. Four wheel drive and high clearance transition from recommendation to requirement. The narrow shelf road, getting rockier, creates exposure combined with technical navigation. Those very tight and narrow spots leave zero margin for error. This earns its 5 rating legitimately, suitable only for capable short wheelbase vehicles with experienced drivers and proper clearance.

Technical Rating

5

Status Reports

Add Status Report
Chris Dowell
Jul 25, 2026
Open
Rough/Deteriorated
SC065 was smooth and clear up to the location. Just light sand and rock and minimal washboards. Tires press 27psi down from 70 psi was just right. I lost the left rear traction when the sand in the road gave out near an erosion zone. Took a winch and trac over 2h to get out and the road was too unstable for this heavy van. The road used to be asphalt. Above the location where was hung up was impassable by my sprinter van and current skill level.

Horse Mountain - FS 27S11 Trail can be accessed by the following ride types:

  • Single Track
  • 50 Inch
  • 60 Inch
  • High Clearance
  • Full Width

Horse Mountain - FS 27S11 Map

The onX Offroad Difference

onX Offroad combines trail photos, descriptions, difficulty ratings, width restrictions, seasonality, and more in a user-friendly interface. Available on all devices, with offline access and full compatibility with CarPlay and Android Auto. Discover what you're missing today!

Open Trail Map