English: Line map of Seto Electric Railroad (1936-39?). Hyōtan-yama Station was opened on June 3, 1936. The Seto Electric Railway was absorbed into the Meitetsu group on September 1, 1939.
Reference material:
"瀬戸電鉄",Meitetsu Memorial Museum <Reprint series of Meitetsu Timetable> ,1998.