Gumma-Sōja Station
Lines. Gumma-Sōja Station is a station on the Jōetsu Line, and is located 12.1 kilometers from the starting point of the line at . Station layout. The station has a single side platform and a single island platform connected to the station building by a footbridge; however, only one side of the island platform is in use. The station has a Midori no Madoguchi ticket office. History. Gumma-Sōja Station opened on 1 July 1921. Upon the privatization of the Japanese National Railways (JNR) on 1 April 1987, it came under the control of JR East. Gumma