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 Wonderland Trail is exactly what its name implies: a grueling, spectacular, 93-mile (150km) circumnavigation of Mount Rainier, the most glaciated peak in the contiguous United States. This premier backpacking route is notoriously difficult, rarely offering a flat section of trail. Hikers are either painfully ascending a massive, forested ridge or steeply descending into a deep, glacier-carved river valley, only to repeat the process the very next day. The trail passes through towering old-growth rainforests, crosses roaring and milky glacial rivers via demanding suspension bridges or log jams, and traverses stunning, high-alpine wildflower meadows like Summerland and Panhandle Gap where the mountain's massive ice fields feel close enough to touch.