Cambios

=====North to South=====

In the northern part of the trail the Andes are very high with some summits exceeding 6000 m. Here passes typically exceed 4000 m altitude and steep rocky terrain and glaciers impede walking along the main mountain chain close to the continental divide which forms also the border between Chile and Argentina. Therefore the trail climbs through the Precordillera mainly along the first mountain range next to the [https://en.wikipedia.org/wiki/Chilean_Central_Valley Chilean Central Valley]. But don’t misunderstand Precordillera as low; here the regular route reaches the highest point with 3300 m. To an altitude of approximate 1500 m to 2000 m you find a semi-desert-like vegetation; above this altitude vegetation is scare. In summer expect a generally hot and dry climate but be prepared for chilly nights higher up. When starting early expect large snow fields in higher areas; when getting there late heavy blizzards become a hazard.

South of Curicó the Andes lower in altitude but remain a continuous high mountain range. Summits rarely exceed 4000 m but most passes are still above 2000 m. Here the Andes are much more suitable for hiking. Therefore the trail follows the main mountain range close to the continental divide. Also here the continental divide constitute the border between Chile and Argentina so the trail is mostly close to the international limit but remains on the Chilean side. In this area a large number of route options provides you many hiking choices. You can often opt between lower trails and higher more demanding routes that get you in very remote areas of the Andes. Climate during summer is still quite hot and dry but provides sufficient precipitation to maintain a relative open forest in the valleys. In spring while the snow is melting torrential rivers make this area nearly impassable.