Agreed upon as part of the 1929 Treaty of Lima, it has a length of 62 km (39 mi) and a track gauge of 1,435 mm (4.708 ft).

It is currently administered by the Regional Government of Tacna and operates since May 28, 2016,[1][2][3] after being suspended since March 12, 2012.

[4] It was built in 1856 by the English company The Arica & Tacna Railway Co.

The line has five bridges, at San José, Chacalluta, Gallinazo, Hospicio, and Lagartito.

It also has six stations, of which only the 2 terminals are active: In addition to the aforementioned stations, in the 1990s ENAFER documents indicate the existence of 2 other stops: Concordia (located 10 km south of Hospicio) and Frontera (6 km south of Concordia).