 The national government had closed the line after nationalising it in order to restore the tracks, however it returned to service in March, 2015 with refurbished rolling stock and rails under the operation of Trenes Argentinos.The Tren de las Sierras, as well as linking together parts of the centre of the city of Córdoba, also functions as a tourist railway along the Sierras de Córdoba foothills.A modern railway connection in order to replace the now-defunct Transandine Railway between Argentina and Chile has been proposed and is currently in the planning stages with support from an international consortium of companies.