Middle Santiam River
| Class | IV |
| State | Oregon |
| Drainage | Willamette |
| Region | Middle Willamette |
| Gauge | Green Peter |
| Season | Nov-Apr |
| Length | 7 mi |
| Gradient | 50 ft/mi |
| Elevation Loss | 350 ft |
| Scenery | logging/gorge |
| Remoteness | Not Very Remote |
| Nature | Pool Drop |
| Optimal Flow | 1,100 CFS |
| High Flow | 2,000 CFS |
| Low Flow | 900 CFS |
| Okay Flow | 900 CFS – 2,000 CFS |