| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Foss River | Skykomish River | 47.7050000000 | -121.3058333333 | Map | |||||||
| Miller River | Skykomish River | 47.7189000000 | -121.3940000000 | Map | |||||||
| Sultan River |  | 207,199,040 | Skykomish River | 48,000 | 47.8578000000 | -121.8200000000 | Map | ||||
| Wallace River |  | 77,699,640 | Skykomish River | 24,000 | 47.8592000000 | -121.7980000000 | Map |