| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dolo, Côtes-d27Armor |  | 123,000,000 | 205 | Argenton | 24,500 | 46.8458000000 | -0.5744400000 | Map | |||
| Scie (rivière) | 42,000,000 | Argenton | 8,800 | 46.9369000000 | -0.5761000000 | Map |