History
Shinano-Omachi Station opened on 5 July 1916 when the privately built Shinano Railway (unrelated to today's namesake third-sector firm) brought its line from Matsumoto into Omachi, Nagano Prefecture, with substantial financial and land support from the town. The route was electrified on 8 January 1926 and nationalised on 1 June 1937 as the Oito South Line. The full Oito Line was completed on 15 August 1957. From 26 April 1971 the limited-express Azusa began calling here, and the Tateyama-Kurobe Alpine Route from Omachi opened that same June. Privatisation in 1987 placed the station under JR East.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The Oito Line takes its name from one kanji each in the original Omachi and Itoigawa endpoints of the two lines that were eventually joined to form it.