Tren a las Nubes & La Polvorilla Viaduct
Tren a las Nubes / Viaducto La Polvorilla
One of the highest railways in the world. The train climbs the Polvorilla Viaduct at 4,220 meters, with sweeping views across the Andean plateau.
The Tren a las Nubes is a sightseeing railway crossing the Andes. Its most famous section is the Polvorilla Viaduct, at about 4,220 meters above sea level, 224 meters long and 63 meters high. The most common way to do it today is to take a tourist bus from Salta along Route 16 and up through the Toro Gorge to the high-plateau town of San Antonio de los Cobres. From there, you transfer to the train for a round trip to the viaduct. The full trip takes about 14 hours. Operating seasons, schedules, and fares often change, so book in advance on the official website. The high altitude means thin air, so take precautions against altitude sickness.
Opening hours
Runs on schedule; check official site
Nearby sights
- Cachi
- Quebrada de San Lorenzo
- Los Cardones National Park
- Mercado Artesanal de Salta
- Cuesta del Obispo
- Pajcha Museum of American Ethnic Art
- Calle Balcarce Peñas
- Museum of High Altitude Archaeology (MAAM)