History
Omoshiroyama-Kōgen Station opened on 10 November 1937 as the Omoshiroyama Provisional Station on the Senzan Line in what is today the city of Yamagata, Yamagata Prefecture. The unstaffed single-platform stop sits at the Yamagata-side mouth of the Senzan Tunnel and is 42.5 rail kilometres from Sendai. It passed to East Japan Railway Company on 1 April 1987 and was upgraded from a provisional to a regular station, gaining its current name, on 13 March 1988. Rapid services have called less frequently over time as ridership declined; from 2015 the station has been served only by local trains.
History summarized from Japanese & English Wikipedia · last reviewed 2026-06-09.
Where the English and Japanese sources differ, this account follows the Japanese source.
Notes
In winter the road to the nearby Omoshiroyama-Kōgen ski area is closed; the ski area has been suspended since 2009, though the station remains accessible year-round by train.