The is a railway line in Yamagata Prefecture, Japan, operated by East Japan Railway Company (JR East). It connects Kita-Yamagata Station in Yamagata with Aterazawa Station in à Âe. All trains run through to and from Yamagata Station.
The line was opened to Uzen-Nagasaki in 1921, and extended to Aterazawa the following year. CTC signalling was commissioned on the line in 1982.
The Sanzan Electric Railway operated an 11 km line from Uzen-Takamatsu Station to Mazawa, electrified at 600 V DC, between 1926 and 1974.