| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| River Creedy |  | River Exe | 50.7429611111 | -3.5490805556 | Map | ||||||
| River Barle |  | 128,000,000 | River Exe | 39,600 | 51.0159166667 | -3.5210000000 | Map | ||||
| River Batherm |  | River Exe | 50.9760000000 | -3.4871900000 | Map | ||||||
| River Culm |  | River Exe | 27,000 | 50.7598277778 | -3.5146722222 | Map | |||||
| River Haddeo |  | River Exe | 51.0286000000 | -3.5186100000 | Map |