San Antonio de los Cobresand Viaducto La Polvorilla are both located in Argentina, in the Salta Province in the northwest of the country. San Antonio de los Cobres: A high-altitude town situated at about 3,775 meters above sea level in the Andes Mountains. It is known for its mining history, indigenous culture, and as a stop on the famous Tren a las Nubes (Train to the Clouds). Viaducto La Polvorilla: A spectacular railway bridge located near San Antonio de los Cobres. It stands at 4,220 meters above sea level and is the most iconic part of the Tren a las Nubes route, showcasing impressive engineering in a dramatic mountainous landscape. The Salta Province in northwest Argentina is home to both the Viaducto La Polvorilla and San Antonio de los Cobres. About 13 kilometers from San Antonio de los Cobres stands the famous steel railway bridge known as the Viaducto La Polvorilla. It is one of the highest railway bridges in the world, rising 4,220 meters (13,845 ft) above sea level. The "Tren a las Nubes" (Train to the Clouds), a tourist train that travels through the picturesque Andes, includes this viaduct as one of its main features. Argentina is home to the full route, which includes the Viaducto La Polvorilla and San Antonio de los Cobres.​

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