| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Hess River | 8,757,999,616 | Stewart River | 320,000 | 63.5530555600 | -133.9786111100 | Map | |||||
| Beaver River (Stewart River tributary) | 4,927,000,064 | Stewart River | 132,000 | 63.9583000000 | -133.9000000000 | Map | |||||
| McQuesten River | 2,870,000,128 | Stewart River | 80,000 | 63.5502777778 | -137.4430555556 | Map |