Paso Internacional Los Libertadores, also called Cristo Redentor, is a mountain pass in the Andes between Argentina and Chile. It is the main transport route connecting the Chilean capital city f Santiago to Mendoza city in Argentina and so carries quite heavy traffic. With twenty nine hard switchbacks on an extremely steep incline, it is also one of the most challenging roads to navigate.

The road begins on the Chilean side with a steep rise, approximately 50 km from the city of Los Andes which lies 70 km north of Santiago. The switchbacks start soon after. The first 20 switchbacks stretch over 4 km with a change in elevation from 2,275 m to 2,550 m. The road then climbs gently for 2 km to an altitude of 2,650 m. The next 9 switchbacks take you up to an altitude of 2,800 m over a distance of 2.5 km. From this point, it’s another 5km to the Chilean immigration post and then two more kilometers to the start of the old road leading up to the summit.

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