| Opened | 1905 - 1924 | Tracks | Single track |
| Mapion | Major stations | Connecting lines | Km | City | Prefecture | |
| Map | Map | Asa | JR West: Sanyō Shinkansen, JR West: Sanyō Hon | 0.0 | Sanyō-Onoda-shi | Yamaguchi |
| Map | Map | Mine | | 19.4 | Mine-shi | |
| Map | Map | Nagato-shi | JR West: Sanin Hon, JR West: Sanin Hon (Senzaki branch) | 46.0 | Nagato-shi |
| Type | Origin - Major stops - Destination | Trains per day | Fastest train | Average speed |
|---|---|---|---|---|
| Local Futsū 普通 | Asa - Nagato-shi - Senzaki | 3 | 1h08 | 43 km/h |
| Asa - Nagato-shi | 8 | 1h02 | 45 km/h | |
| Mine - Nagato-shi - Senzaki | 1 | 41 min | 42 km/h |
