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ARGENTINA: ANDES TRAVERSE PORTILLO ARGENTINO, PORTILLO PIQUENAS, CAJON DEL MAIPO

RECOMMENDED BY RAGNA KRÜCKELS, MOUNTAIN AND SKI GUIDE AND DEUTER ATHLETE

Duration: ca. 6-8 days (+1 day for ascent of Cerro Punta Negra or + 4 days to climb Pircas)
Start: El Manzano Historico, Mendoza province, Argentina
Finish: Embalse el Yeso/Cajon del Maipo, Chile
Elevation: 4,380 m max. altitude [optional: peak Pircas with 5,400 m]

WHAT TO EXPECT

The sheer remoteness of this trek makes it one for the truly adventurous. Careful planning and logistics are necessary, as are good navigation skills and understanding of terrain. But the pristine natural environment overlooked by towering peaks makes it all worthwhile.

THE TREK IN DETAILS

This trek dates back over 200 years when General San Martin and his troops freed Chile from Spanish rule. They came from the Chilean side, crossed Portillo Argentino and arrived in the Mendoza district of Argentina. Here, the General rested under an apple tree, which gave rise to the name of the village ‘El Manzano Historico’ which translates as the historic apple tree, before going on to defeat the Spanish in the War of Independence. Still today, the trek can be undertaken on horseback, or on foot. But this is one for adventurous types only since the remote nature of this trail demands a great deal of logistical planning and a high level of route-finding skills.

Starting in El Manzano Historico, in Argentina, set off on foot, or for experienced riders on horseback, towards Refugio Alferez Portinari, and go through the time-consuming border crossing process at 2,520 m. A further four hours and 11 km later, you’ll get to the first night’s stop at Refugio Antonio Scaravelli. From here, it’s a one-day climb to the freestanding Andean peak of Cerro Punta Negra, at 4,346 meters. Or to the summit of Pircas (5,400 m). But for this peak, factor in another 4 days because it involves hiking into the neighboring valley of Cajon de Arenales and setting out from there. The descent and getting back to the Refugio Scaravelli also take time.

Continuing on to Campomento Yaretas, hikers can pitch a tent for the night (those on horseback usually keep going). The next stage of the trek takes you along a trail with very few waymarks over the Portillo Argentino (4,380 m) and down into the verdant Tunuyan Valley, where the Refugio Real de la Cruz serves as a good place to rest and recuperate. Then, follow the river towards Real Contreras (there is a hut that can be used here) or if time allows, push on through to Termas del Plomo on the Chilean side. The warm waters of the hot springs are a welcome ‘spa’ after such a long day. The final day takes you through the Valle del Yeso and to Embalse el Yeso and the Cajon del Maipo reservoir, in whose icy blue waters the peaks of the Cordillera are reflected.

This trek is one of the lesser-known Andes crossings and therefore less frequented. It can be completed on foot (or almost all on horseback), following the natural valleys contours and crossing the main ridge of the Andes. Even during the summer months (Dec. – Feb. in the southern hemisphere) there is snow cover. If not doing the Andes crossing and just staying on the Argentinian side to climb the two peaks, factor in another 5-6 days, and fewer logistical challenges.

 

Getting there: By bus from Mendoza, Argentina, to Tunuyan and El Manzano Historico. Then by private transport, on foot or by horse to the border post 20 km away.

Further information: andesinfinito.com

Accomodation & food: In campsites and self-catering huts. Food for the whole trek must be purchased beforehand in Tunuyan and carried.