| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| River Llugwy |  | River Conwy | 53.0833000000 | -3.8000000000 | Map | ||||||
| Afon Lledr |  | River Conwy | 53.0667000000 | -3.8000000000 | Map | ||||||
| River Gyffin |  | River Conwy | 53.2795400000 | -3.8241170000 | Map | ||||||
| Afon Crafnant |  | River Conwy | 4,000 | 53.1325000000 | -3.8700000000 | Map | |||||
| River Machno | River Conwy | 53.0667000000 | -3.7833300000 | Map |