John Day River
| Class | II III |
| State | Oregon |
| Drainage | Columbia |
| Region | Central Oregon |
| Season | Mar-Jun |
| Length | 69 mi |
| Gradient | 11 ft/mi |
| Elevation Loss | 759 ft |
| Scenery | desert canyon/ranches |
| Features | basalt.beautiful |
| Remoteness | Somewhat Remote |
| Nature | Continous |
| Watershed | Wild and Scenic |
| Optimal Flow | 2,000 CFS |
| High Flow | 6,000 CFS |
| Low Flow | 1,200 CFS |
| Okay Flow | 1,200 CFS – 6,000 CFS |