History
Marumori Station in Marumori town, Miyagi opened on 1 April 1968 as the terminus of the Japanese National Railways Marumori Line, a partially built route originally planned to run from Tsukinoki to Fukushima. Because the line stopped at Marumori for nearly two decades, eastbound trains from Tsukinoki ran as up-trains in defiance of the usual JNR convention. Low ridership made the Marumori Line a Specific Local Line designated for closure under the JNR rehabilitation programme; local governments converted it to the third-sector Abukuma Express on 1 July 1986, and the missing Marumori–Fukushima section finally opened on 1 July 1988, leaving Marumori as a through station.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Because Marumori was a stub terminus from 1968 to 1988, the Marumori Line ran with the JNR's standard up/down direction reversed: trains heading toward Tsukinoki and ultimately Tokyo were classed as up-trains rather than down-trains.