Piuquenes Pass (Andes Crossing)

Following the historic path used by the Army of the Andes in 1817, this 6-day trans-Andean expedition traverses the central cordillera from Mendoza, Argentina, to the Cajón del Maipo in Chile. The route crosses two significant high-altitude barriers—Portillo Argentino (4,330m) and Paso Piuquenes (4,030m). Hikers move through a high desert landscape of volcanic rock, vast glacial valleys, and the powerful Tunuyán River. The terrain consists primarily of rocky mountain paths, loose scree on the steeper pass approaches, and high-altitude plateaus where exposure to wind and sun is constant.

The 'Big Kora' is an advanced outer circumambulation route rarely undertaken by independent hikers and subject to changing local regulations. Yading Nature Reserve, located in the Tibetan plateau of western Sichuan, is dominated by three sacred snow-capped peaks (Chenresig, Jambeyang, and Chanadorje). While many visitors complete the shorter day-hikes on boardwalks to Milk Lake, the 'Big Kora' (Outer Yading Trek) is a challenging 6-to-8-day high-altitude trek around all three peaks. Hikers navigate remote terrain including glacial lakes, forested valleys, and 4,700m+ passes, often sharing trails with Tibetan pilgrims and local wildlife.