History
Nanakubo Station opened on 23 July 1918 as the terminus of the Ina Electric Tramway's extension from Iijima in Kamiina District, Nagano Prefecture. The station became an intermediate stop on 12 December 1918 when the line was extended further toward what is now Takatōbara. In 1943 the Ina Electric Railway lines were nationalised as part of the Iida Line and the station passed to Japanese Government Railways. With JNR's privatisation on 1 April 1987 the station came under both JR Central (passenger) and JR Freight. It was destaffed on 31 March 1994, and JR Freight's freight handling was formally discontinued on 1 April 2002.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Until the late 1990s a private siding once branched off Nanakubo Station southwestward to the Nippon Oil Ina depot, with petroleum tank cars from Shiomi-chō Station arriving roughly twice a week; the spur was removed when the depot closed in March 1996.