Nemuro Main Line
The principal route between Sapporo and Okhotsk Subprefecture has changed several times. Originally, the route was the Hakodate Main Line to Asahikawa, then the southbound Nemuro Main Line and then the northbound line from Ikeda, via the to Kitami. The route shortened by when the section between Takikawa and Furano on the Nemuro Main Line opened in 1913.