| Opened | 1921-1922 | Tracks | Single track |
| Mapion | Major stations | Connecting lines | Km | City | Prefecture | |
| Map | Map | Yamagata | JR East: Yamagata Shinkansen | 0.0 | Yamagata-shi | Yamagata |
| Map | Map | Kita-Yamagata | JR East: Ōu Hon [Yamagata] (Fukushima - Shinjō ) | 1.9 | Yamagata-shi | Yamagata |
| Map | Map | Sagae | | 17.3 | Sagae-shi | |
| Map | Map | Aterazawa | | 26.2 | Ōe-machi |
| Type | Origin - Major stops - Destination | Trains per day | Fastest train | Average speed |
|---|---|---|---|---|
| Local Futsū 普通 | Yamagata - Sagae - Aterazawa | 12 | 40 min | 39 km/h |
| Yamagata - Sagae | 4 | 26 min | 40 km/h | |
| Sagae - Aterazawa | 1 | 14 min | 38 km/h |
