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railroad guard rails on viaduct

Railroad viaduct over the rio toro near Salta (Argentina).­

On the viaduct there are two pairs of guard rails, so that in case a train car derails while on the bridge, it will likely still be on rails, to prevent a deadly accident.­

For more info about railroad guard rails, go to en.­wikipedia.­org/­wiki/­Guard_­rails_­(railroad).

This train line between Salta and San Antonio de los Cobres (Argentina) is sometimes called "Tren a las nubes".­ For more information, read en.­wikipedia.­org/­wiki/­Tren_­a_­las_­Nubes

Ruta Nacional 51, Salta, Argentina
Argentina 575 photos

Photos taken in Argentina in Februaty and March 2010.­

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- Bolivia