| Stretch: | 420 Gorge |
| Difficulty: | Class IV+ to V |
| Distance: | 1.7 km |
| Flows: | ~100-300 cfs (no gauge) |
| Gradient: | 279 fpm average (the two gorges are significantly steeper) |
| Put-in: | Bridge on the 420 just outside of Quenzi |
| Take-out: | Turnout at D420 and D20 junction (or lower at the lake, but the dam emlpoyees are apparently aggressive) |
| Shuttle: | 2.1 km, all paved (plus 10-15 minutes of hiking) |
| Season: | Spring from snowmelt/rain |
| Featured in Video A Wet State #74 and Kayak Session's Guide | |