| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Barron River (Ontario) |  | Petawawa River | 49,000 | 45.9066666667 | -77.8936111111 | Map | |||||
| Crow River (Ontario) | Petawawa River | 45.9586000000 | -78.1822000000 | Map | |||||||
| Little Madawaska River (Ontario) | Petawawa River | 45.9842000000 | -78.3125000000 | Map | |||||||
| Tim River | Petawawa River | 43,000 | 45.7877777778 | -78.6677777778 | Map |