Aonuma StationAonuma Station is a train station in the city of Saku, Nagano, Japan, operated by East Japan Railway Company.WWW jreast.co.jp/estation/sta...LinesAonuma Station is served by the Koumi Line and is 59.5 kilometers from the terminus of the line at Kobuchizawa Station.Station layoutThe station consists of one ground-level side platform serving a single bi-directional track. The station is unattended.HistoryAonuma Station opened on 28 December 1915 as the Irisawa Stop. It was elevated to a full station on 1 September 1934. The station was closed from 1944 to 1952. It was renamed to its present name on reopening on 1 March 1952. With the dissolution and privatization of JNR on April 1, 1987, the station came under the control of the East Japan Railway Company.