as a temporary station. April 1, 1987: Senzan Line becomes part of JR East and JR Freight. June 20, 1987: Train exchange equipment service is started at Kunimi Station. March 13, 1988: Omoshiroyama Temporary Station becomes a station and is renamed Omoshiroyama-Kōgen Station. November 18, 1988: Tōshōgū Station opens. March 10, 1990: 719 series EMUs enter service on the Senzan Line. September 1, 1990: The "Tsugaru" express continues operations on the Senzan Line due to construction of the Yamagata Shinkansen. March 16, 1991: Kuzuoka Station opens. August 27, 1991: "Tsubasa" express is diverted over the Senzan Line due to construction of the Yamagata Shinkansen. July 1, 1992: Diversion of the "Tsubasa" express over the Senzan Line ceases with the completion of the Yamagata Shinkansen. December 1, 1993: "Tsugaru" express ceases operations. October 1998: Freight services temporarily stop. December 1999: The Senzan Line up to Uzen-Chitose is converted to double-track with the expansion of the Yamagata Shinkansen. April 1, 2001: The "Senzan" Weekend Rapid becomes the "Holiday Senzan". 455 series EMUs are replaced by 719 series trains formerly used on the Tōhoku Main Line. December 1, 2001: ATS-Ps emergency train stop system is introduced in the Sendai — Ayashi area. April 1, 2002: Freight services cease on the Senzan Line. October 16, 2004: The names "Senzan" and "Holiday Senzan" for the rapid trains are discontinued. Rapid trains make more frequent stops at Kunimi, Rikuzen-Ochiai, and Uzen-Chitose. Former connecting lines Toshogu station - A 762mm (2'6") gauge line, ultimately extending 44 km between Tori-Machi and Nishi-Furukawa station on the Rikuu East Line, was opened by the Sendai City Council between 1922 and 1929. It closed in sections between 1937 and 1960. Services All trains which are bound for Yamagata Station run through to Yamagata Station via Ou Main Line between Uzen-Chitose and Yamagata Stations. Rapid Some Senzan Line trains run as rapid trains. All trains stop at the following stations: Sendai Kita-Sendai Kunimi Rikuzen-Ochiai Ayashi Yamadera Uzen-Chitose Kita-Yamagata Yamagata In addition to these stops, the various Rapid trains will stop at all stations in between: Rapid A: N/A Rapid B: Yamagata ー Yamadera (Past: Oku-Nikkawa — Yamagata) Rapid C: Sendai — Ayashi Rapid D: Rikuzen-Ochiai — Sakunami Rapid E: Ayashi — Yamagata At one point, there was a G-Rapid that stopped at the most stations out of all rapid trains, but was considered too confusing by passengers and soon put out of