At the Base of the Pass
Los Andes sits at the point where Chile’s central valley effectively ends and the Andes begin. The city itself — about 75,000 people, a colonial grid, the usual plaza — is pleasant without being remarkable. What is remarkable is the view from almost anywhere in town: the cordillera comes in close here, filling the horizon with snow-covered peaks that in winter reflect enough light to make you squint indoors.
I arrived in September, when the snow line was still at low elevation and the mountains were doing their most dramatic performance. The air in Los Andes is different from the coast — drier, thinner, with a quality of brightness that changes how color reads. The white of the church facade on the plaza was white in a way I don’t usually notice white being.
The Road to the Pass
The famous Camino del Año Nuevo, which climbs from Los Andes through the Río Aconcagua valley toward the Argentine border, is one of the classic Andean drive experiences in South America. The Cristo Redentor statue at the pass sits at nearly 3,900 meters, straddling the Chile-Argentina border on a route that was historically one of the main crossing points between the two countries.
The road through the Chilean side climbs through increasingly dramatic mountain scenery — the valley narrowing, the river running turquoise with glacial melt, the vegetation disappearing by stages until the upper slopes are just rock and snow and the occasional relay antenna. I drove it in a rental car and stopped eleven times. I would have stopped more except that the road has limited pullouts and the altitude was making my head feel slightly advisory.
The Cristo itself is smaller than I expected and more affecting than I expected, which is a combination I’ve learned to trust. It stands at the exact border between two countries, put there in 1904 to mark the end of a territorial dispute, and it has been looking at the mountains ever since with what reads as complete equanimity.
The City Itself
Back in Los Andes, the afternoon market near the bus terminal sells produce from the valley — peppers, tomatoes, corn, peaches in season — at prices that remind you how close you are to where food actually comes from. The Río Aconcagua, which runs through the agricultural land between the city and the mountains, is used for irrigation in a network of channels that’s been operating in some form since the colonial period.
There’s a small archaeological and history museum in the colonial Casa Municipalidad building that I ducked into out of the heat and stayed in for longer than I’d planned. The section on the Inca road system that once ran through this pass — the Camino del Inca predating the Spanish by centuries — reframed the valley I’d been driving through.
Spending the Night
Most people visit Los Andes as a day trip from Santiago or on the way through to Argentina. Spending a night changes the experience: the mountain light at dusk and dawn is specific to this valley, and the restaurants that fill with locals for dinner have a different pace than the tourist-facing places near the plaza.
When to go: September and October for snow on the peaks combined with mild valley temperatures — the best combination of dramatic mountain views and walkable city weather. July and August are ski season (nearby Portillo is the big resort) but the road to the pass can close in heavy snow. Summer (December–February) is warm and dry with longer days for the drive.