| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tonzona River | East Fork Kuskokwim | 120,000 | 62.6391666700 | -152.5075000000 | Map | ||||||
| Slow Fork | East Fork Kuskokwim | 120,000 | 63.0322000000 | -152.9320000000 | Map |