FC Caleta Coloso a Aguas Blancas

The Ferrocarril Caleta Coloso a Aguas Blancas (Aguas Blancas Railway) was a 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. Never converted to like its parent, it retained gauge track until it closed in 1961. Total length was , and in 1958 it possessed 6 locomotives, 3 coaches, and 362 freight cars.