| Opened | 1897 | 762 mm | Tracks | Single track |
| Re-gauged | 1924 | 762 mm > 1067 mm |
| Mapion | Major stations | Connecting lines | Km | City | Prefecture | |
| Map | Map | Takasaki | JR East: Jōetsu, JR East: Jōetsu Shinkansen, JR East: Shinetsu Hon (Takasaki - Yokokawa), JR East: Hachikō, JR East: Takasaki, JR East: Nagano Shinkansen | 0.0 | Takasaki-shi | Gunma |
| Map | Map | Jōshū-Tomioka | | 20.2 | Tomioka-shi | |
| Map | Map | Shimonita | | 33.7 | Shimonita-machi |
| Origin - Major stops - Destination | Trains per day | Fastest train | Average speed |
|---|---|---|---|
| Takasaki - Shimonita | 28 | 57 min | 35 km/h |
| Takasaki - Jōshū-Tomioka | 3 | 35 min | 35 km/h |
