| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| North Santiam River |  | 1,983,930,752 | Santiam River | 148,000 | 44.6867000000 | -123.0070000000 | Map | ||||
| South Santiam River |  | 2,693,587,456 | Santiam River | 111,000 | 44.6867000000 | -123.0070000000 | Map |