Loco Mountain Loop
Technical mining challenge in remote peaks
Loco Mountain’s mining roads date back to the 1890s gold rush, when prospectors carved impossible routes up these brutal Sonoran peaks chasing quartz veins. The loop begins innocuously from Harquahala Road but quickly turns serious with 18-percent grades, loose rock switchbacks, and sections where the trail clings to cliff edges with zero margin for error. Abandoned mine shafts and rusted equipment mark the high country, remnants of fortune seekers who earned this mountain its name.
Experienced technical drivers only — this route demands low-range crawling, precise wheel placement, and solid skid plate protection. Aggressive all-terrain tires minimum, but many sections favor more aggressive tread. October through March provides bearable temperatures; summer attempts are dangerous. No permits but notify someone of your plans — cell service disappears quickly and recovery is complicated. The summit rewards with 360-degree views across the Sonoran Desert to the distant Colorado River, making this challenging loop a true test of both vehicle and driver capability.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Technical 4x4 |
| Surface | Dirt, Rock |
| Features | Historic, Remote, Scenic |
| Length (miles) | 24 mi / 38.6 km |
| Duration | Full day |
| Max elevation (ft) | 5681 ft |
| Best season | October-March |
| Minimum vehicle | Modified 4WD with skid plates |
| Nearest town | Salome, Arizona |
| Land manager | Bureau of Land Management |
| Permit required | No |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | Yes |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a stock Tacoma or 4Runner handle Loco Mountain Loop, or does it need mods?
Stock rigs will struggle here. The trail demands a modified 4WD with skid plates at minimum — think lifted suspension, all-terrain tires, and solid underbody protection. Rocky ledges and steep grades will punish anything running factory clearance.
When is Loco Mountain Loop actually driveable, and what kills access in the off-season?
October through March is the window. Arizona desert summer heat is genuinely dangerous in a remote area with zero cell service — temps routinely hit 110°F+. Summer monsoons can also wash out the dirt sections and make rocky grades slick and unpredictable.
Do you need a permit to run this trail, and is there a fee?
No permit required — it's BLM land and free to access. Standard BLM rules apply: pack out your trash, don't cut new tracks, and stay on designated routes.
What's the hardest section on the loop and what exactly makes it technical?
The steep rocky grades climbing into the Harquahala Mountains are where rigs get tested — loose rock, off-camber shelf road, and tight lines with exposure. With 3,200 feet of gain packed into 24 miles, you're not getting a break between the hard parts.
How far is the nearest gas from the trailhead, and is there any water on the trail?
Salome is your last fuel stop — top off there before heading out. There is no water on the trail itself, so carry all you need for a full desert day plus emergency reserve; figure at least a gallon per person on top of vehicle cooling needs.
Trail track
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