FC Caleta Coloso a Aguas Blancas
The Ferrocarril Caleta Coloso a Aguas Blancas (Aguas Blancas Railway) was a 2 ft 6 in (762 mm) narrow gauge railway operating in the Antofagasta region of Chile, and was built to serve the nitrate workings southeast of Antofagasta. Opened in 1902 it was taken over by the Ferrocarril de Antofagasta a Bolivia in 1909.
Source: Wikipedia — FC Caleta Coloso a Aguas Blancas (CC BY-SA 4.0)