| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Breitenbush River |  | 279,718,720 | North Santiam River | 18,100 | 44.7492000000 | -122.1340000000 | Map | ||||
| Little North Santiam River | 292,668,640 | North Santiam River | 43,000 | 44.7847222200 | -122.6083333300 | Map |