01 / Birthplace of Shikoku's railway
The Sanuki Railway (讃岐鉄道)set off from Tadotsu.

On May 23, 1889, the Sanuki Railway opened a 16.4 km line from Marugame to Kotohira, starting from Tadotsu — said to mark the beginning of railways in Shikoku. JR Shikoku marked the 100th anniversary by preserving an 8620-class steam locomotive's driving wheel by the station, and the locomotive itself north of the station building. The Dosan Line's zero-kilometre post still stands at Tadotsu Station.
- Opened 1889, starting point
- Marugame-Kotohira, 16.4 km
- Dosan Line's zero-kilometre post
