| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Agatsuma River |  | 1,352,099,968 | 1,362 | Tone River | 76,220 | 36.5000000000 | 139.0160833333 | Map | |||
| Karasu River (Gunma) |  | 470,000,000 | Tone River | 61,800 | 36.2736900000 | 139.1725200000 | Map | ||||
| Kinugawa River |  | 1,760,000,000 | 2,040 | Tone River | 1,767,000 | 35.9378138889 | 139.9505000000 | Map | |||
| Watarase River |  | 2,620,999,936 | Tone River | 106,700 | 36.3255416665 | 139.4560503766 | Map | ||||
| Katashina-gawa |  | 673,099,968 | Tone River | 60,800 |