| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wildcat Creek (Siuslaw River tributary) |  | 141,154,352 | Siuslaw River | 26,000 | 44.0033000000 | -123.6550000000 | Map | ||||
| Lake Creek (Siuslaw River tributary) |  | 577,567,296 | Siuslaw River | 64,400 | 44.0552777800 | -123.7963888900 | Map | ||||
| North Fork Siuslaw River | 165,759,232 | Siuslaw River | 43,000 | 43.9763888900 | -124.0808333300 | Map |