| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Río Ovelha | Tâmega | 41.2005555600 | -8.1425000000 | Map | |||||||
| Rio Basto | Tâmega | ||||||||||
| Rio Beça | 337,900,000 | Tâmega | 41.5269444400 | -7.8527777800 | Map | ||||||
| Rio Cabril (Tâmega) | 62,400,000 | Tâmega | 41.4030555600 | -7.9625000000 | Map | ||||||
| Rio Odres | 58,700,000 | Tâmega | 41.2000000000 | -8.1522222200 | Map |