The "Tórtolas", led by Fepasa's 3306, stops on third track in the yards of Llay Llay station with its convoy of empty copper concentrate hoppers.
Coming from Ventanas, only a few kilometers remain, to reach its destination, Las Blancas transfer station. However, the steep slope that exists between Llay Llay and Las Blancas, forces the train to stop and couple a second locomotive.