[2][3] Kubokawa Station on the Dosan Line serves as the departure point for nearly all trains heading west.

The first part of the line, to Kawaoku Junction just after Wakai, is not owned by JR but by the Tosa Kuroshio Railway.

[1] The Yodo Line has only one sort of service, local trains that stop at every station.

In 1914, the Uji Light Railway Co. opened a 762 mm (2 ft 6 in) gauge line 18 km between Uwajima and Chikanaga.

The Uwajima Railway was nationalised by Japanese Government Railways in 1933, becoming the Uwajima Line; Miyanoshita Station was renamed Iyo-Miyanoshita Station, Nakano became Futana, and Yoshino was renamed Yoshinobu.