| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Barrington River (New South Wales) |  | Gloucester River | 93,000 | -31.9850000000 | 151.9616666667 | Map | |||||
| Bowman River | Gloucester River | 54,000 | -31.9572222222 | 151.9825000000 | Map | ||||||
| Avon River (Mid-Coast Council) |  | Gloucester River | 42,000 | -31.9983000000 | 151.9710000000 | Map |