Travelling through Huahum Pass, one of the lowest passes of the Andes

Paso Huahum is an international mountain pass at an elevation of 625m (2,051ft) above sea level, located on the border between Chile and Argentina. It’s one of the lowest passes of the southern Andes.

Paso Huahum

Where is Huahum Pass?

The pass, also known as Paso Hua Hum and Paso Pirihueico, links northwest Patagonia, in Argentina and Los Ríos Region in Chile. 

How long is the road through Huahum Pass? 

The road through the pass is 54km long, running east-west from San Martín de los Andes (a town in Argentina) to Puerto Pirihueico (a Chilean village in Panguipulli commune of Los Ríos Region). To get to or from the pass on the Chilean side, you have to take a ferry across Lake Pirihueico. The Hua Hum ferry runs every day between Puerto Fuy and Puerto Pirihueico and takes 1½ hours.  

Is the road through Huahum Pass paved? 

On the Chilean side, the road is called Ruta CH-203 and In Argentina, the road is called Ruta Provincial 48. Both roads comprise paved and unpaved sections and are being improved lately. 

Is the road through Huahum Pass open year-round? 

Set high in the Andes mountain range, the pass never closes due to snow fall and is open year-round.
Pic: Nicolás Vallejos Roja