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 Sella-Herbetet Traverse (Traversata Sella–Herbetet) is a primary high-altitude loop within the Parco Nazionale del Gran Paradiso, Aosta Valley. The route connects Rifugio Vittorio Sella (2,584m) with the Casolari dell'Herbetet via a sustained balcony trail. The traverse crosses steep south-facing slopes overlooking the Valnontey valley (Cogne), utilizing narrow paths through rocky karst and scree. Historically a royal hunting preserve, the area supports a high density of Alpine Ibex (Capra ibex), which are frequently observed at elevations above 2,200m. The circuit involves a significant 1,150m vertical gain from the Valnontey valley floor.