- The 17 km Ōnuma-Kōen to Shikabe line opened in 1929, and had the misfortune to be affected by a volcanic eruption just six months later, which closed it for two months. It closed in 1945 when the Shikabe Station on the Sawara line opened, but as the new station was some distance from the township, locals agitated for re-establishment of services to the original station. This occurred in 1948 when the last 11 km of the line from Choshiguchi was reopened by the local government, but competition from bus services resulted in the line being permanently closed in 1952.