a polvorilla railway viaduct salta argentina

bridge transport arch wall track landmark waterway infrastructure ruins reservoir highway mountain road river viaduct overpass architecture polvorilla railway salta argentina line called tren las nubes one highest routes world during stay early 2008 trains this route did not run for several years but there were rumors that resume services points located world according information 220 above sea level from antofagasta chile through socompa pass argentine-chilean border was built copper borax construction completed 1932