Paso Internacional Pehuenche Mining Access

This remote mining road climbs from Talca valley floor to over 3,000 meters through abandoned copper workings that operated from the 1940s through 1980s. The track follows the original supply road built to service Mina El Teniente’s satellite operations, crossing three major creek systems and navigating around massive mine tailings piles. Beyond Laguna del Maule, the road deteriorates into loose scree sections where Chilean miners once hauled equipment by mule train to reach the highest workings.

Extreme difficulty requires expedition-equipped vehicles with low-range transfer cases and full recovery kit. Weather changes rapidly above 2,500 meters — snow possible year-round despite being accessible April through November. Carry extra fuel, food, and cold weather gear; nearest services are 180 kilometers back in Talca. The reward is witnessing industrial archaeology frozen in time at altitude, plus accessing some of Chile’s most remote backcountry camping with views into Argentina.