| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Doré (Côtes-d'Armor) | Nantes-Brest canal | 8,000 | 48.1557000000 | -3.2603000000 | Map | ||||||
| Rigole d'Hilvern | 315,000,000 | Nantes-Brest canal | 61,600 | 48.3019050000 | -2.8937970000 | Map |