| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| River Clywedog, Denbighshire | River Clwyd | 53.1747520000 | -3.3636120000 | Map | |||||||
| Afon y Maes | River Clwyd | 53.0470370000 | -3.3299410000 | Map | |||||||
| Afon Ystrad | River Clwyd | 8,830 | 53.1375910000 | -3.4882000000 | Map | ||||||
| River Elwy |  | River Clwyd | 53.2833000000 | -3.4500000000 | Map |