Follow part of the route of argentinas famous train to the clouds on a scenic round trip drive from salta to the mountain town of san antonio de los cobres as you climb in elevation during the drive travel through quebrada del toros dense greenery and breathtaking gorge dotted with cacti cross viaducts and bridges including alisal and chorrillo and visit the pre incan archaeological gem of santa rosa de tastil explore the quiet mining town of san antonio de los cobres from where youll