The sanctuary's territory includes the La Paloma, El Altar, and El Plomo peaks.
It acts as a primary buffer zone for the sanctuary of the same name and protects a rare, high-altitude watershed.
The valley was shaped by glacial erosion, resulting in a classic 'U' shape visible throughout the lower and middle sections.
It is home to the endangered Andean Condor, which frequently nests in the surrounding cliffs.
The sanctuary contains several archeological sites related to pre-Hispanic mountain worship practices.
It is one of the closest high-altitude wilderness areas to a major South American capital city.
Yerba Loca Nature Sanctuary is a 39,000-hectare mountain reserve located in the Andes foothills east of Santiago. The sanctuary protects a high-altitude watershed that provides significant water resources to the Metropolitan Region. It features a glacial valley characterized by dramatic rock formations and the hanging La Paloma glacier at its terminus. The terrain ranges from 1,800 to 5,500 meters above sea level, encompassing diverse ecosystems including Mediterranean scrub and Andean meadows. Several distinct trekking trails allow visitors to access various parts of the valley, ranging from moderate day hikes to demanding multi-day expeditions. The sanctuary is managed as a private initiative focused on mountain conservation and sustainable recreation.
The viewpoint overlooking the valley floor approximately 30 minutes past the entrance.
Bring a portable water filter if you plan to hike into the deep valley, though carry enough for your initial trek.
Check weather conditions specifically for the high-altitude zone, as temperatures drop significantly compared to Santiago city.
Register at the park entrance booth upon arrival for mandatory safety tracking.
Attempting to reach the glacier base without high-altitude trekking experience or proper physical preparation.
Operations are heavily dependent on weather; trails may be closed periodically during winter months or after significant snowfall.
Strict 'Leave No Trace' policy; all waste must be carried out; pets are prohibited; loud music is not permitted.