Trail Overview

This single-track forest road leads you from Highway 89 west to the historic Aso Ranch through the Coconino National Forest, or east as an alternate access to O'Leary Loop, bypassing the challenging FS 9124 portion of the O'Leary Trail. It can be run in any direction. The trail was mapped traveling from Aso Ranch east to O'Leary Loop. As a solo trail, it can be run from Highway 89 to Aso Ranch. At Aso Ranch, you can pick up the 89 to Aso Ranch Trail to easily get back to the pavement.

Photos of Aso Ranch to O'Leary Loop

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Difficulty

West of Highway 89, stock 4x4 will find deep washouts that require good tire placement and potentially some road-building skills. Lifted rigs will have no problems. Ninety percent of the erosion is located on the Highway 89 end of the trail between Stagg Tank and Old Grand Canyon Tank. From Old Grand Canyon Tank to Aso Ranch, this is a grade 3 trail. East of Highway 89 (towards O'Leary Loop), it's a grade 3 trail and has no obstacles of note because there are bypasses for all eroded areas on that side of the trail. Note: monsoon season can, and will, change the nature of this trail. There is evidence of serious erosion problems with multiple, almost washed away, culverts attempting to repair the erosion between Stagg Tank and OGC Tank.

Technical Rating

Corrine Carter

Apr 26, 2026

Open

Hi all! I mapped this trail a few years ago and see that the rating (in error) is still a 5 instead of a 3. I'm not sure why the update is delayed, but this is a 3. See the photos of my 32" tires on a stock height Jeep. :-). However, this road can become soup when wet!

Adam B

Dec 07, 2025

Open

Pretty scenic trail as it just winds out into the hills. Otherwise simple and uneventful. A couple rutted washouts but at best this is a 2/10 trail

Ken M

Jun 08, 2025

Open

The gate was locked at the US HWY 89 exit/entrance