Mexico · San Luis Potosí

Sierra de Guadalcázar Desert Mining Circuit

Mercury mines in forgotten mountains

Difficult

The rough mining roads threading through the Sierra de Guadalcázar reveal one of Mexico’s forgotten mineral districts, where mercury, silver, and lead extraction once sustained a network of remote camps now reclaimed by the Chihuahuan Desert. The circuit begins in Guadalcázar and winds through the ruins of Real de Guadalupe and Cerro de San Pedro, climbing over rocky passes where mine adits still puncture cliffsides and rusted machinery sits frozen in time among ocotillo and barrel cactus.

This difficult route requires experienced 4WD navigation through unmarked mining roads that can disappear in washouts and rockfall. Bring GPS, paper maps, and enough supplies for self-recovery—the nearest help is hours away. Winter months (November-February) offer the best conditions, though nights can drop below freezing at elevation. The reward is complete solitude in a landscape where industrial history meets raw desert beauty, with camping spots that offer views across endless bajadas toward distant mountain ranges.

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Trail Specs

Difficulty
Trail Type
Surface
Features, , ,
Length (miles)95 mi / 152.9 km
Duration3 days
Max elevation (ft)4800 ft
Best seasonNovember-February
Minimum vehicleModified 4WD with skid plates
Nearest townGuadalcázar, San Luis Potosí
Land managerMunicipal
Permit requiredNo
Cell serviceNone
Water crossingsNo
Dispersed campingYes
Start coordinates
End coordinates
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Official: Difficult

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