Koyamatsu Station is a railway station operated by the Isumi Railway Company's Isumi Line, located in Isumi, Chiba Prefecture Japan. It is 18.2 kilometers from the eastern terminus of the Izumi Line at Ōhara Station.
Wikipedia https://en.wikipedia.org/wiki/Koyamatsu_Station
Address Japan
Coordinates 35°16'7.887" N 140°15'4.422" E