The railway “El Ultimo Ramal” (‘the last branch line’) from Talca to Constitución in central Chile is among Chile's most exciting railway journeys. El Ultimo Ramal is an 88.4 km (56 mile) narrow-gauge railway line in Chile with a gauge of 1000 mm. It is the last meter-gauge branch line for passenger transport in Chile and the only non-electrified metric-gauge branch railway line in service today in Chile. The Iberian-gauge railways servicing Spain and Portugal are close enough, just 8 mm narrower at 1,668 mm, so that Iberian rolling stock can be
