La Polvorilla viaduct

La Polvorilla Viaduct is the name of the best known of the viaducts through which the Train to the Clouds travels on the C-14 branch of the General Belgrano Railroad of the Argentine railway network. It is located in the province of Salta about five kilometers east of the town of Chorrillos. A dozen kilometers to the northwest is San Antonio de los Cobres, shortly after crossing the so-called Eastern Cordillera by an open that separates it from the so-called Sierra de los Pastos Grandes.

The bridge is a structure of steel beams 223.5 meters long, a maximum height of 63 meters from the ground and 1590 tons of weight, on a land located at 4200 meters (13,779 feet) - thus constituting one of the the world's highest bridges and railway sections above sea level. Since its inauguration it was considered a monumental engineering work, becoming a tourist attraction. In the 1970's, the Ferrocarriles Argentinos company devised a passenger tourist service, the Train to the Clouds, with a term just beyond La Polvorilla.

One photo of the train