| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Arm River (Mersey River) | Mersey River | 14,100 | -41.6888888900 | 146.2166666700 | Map | ||||||
| Dasher River | Mersey River | 37,200 | -41.4025000000 | 146.4719444400 | Map | ||||||
| Fisher River (Mersey River) | Mersey River | 29,300 | -41.6469444400 | 146.2275000000 | Map |