| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Casiquiare canal |  | 2 | 42,299,998,208 | 123 | Orinoco | Rio Negro | 340,000 | 3.1383333333 | -65.8800000000 | Map | |
| Cuieiras River (Rio Negro tributary) |  | Rio Negro | -2.8252777778 | -60.5105555556 | Map | ||||||
| Demini River | Rio Negro | -0.6166666667 | -62.9333333333 | Map | |||||||
| Puduari River | Rio Negro | -2.1047500000 | -61.2201500000 | Map | |||||||
| Apuaú River | Rio Negro | -2.5333333333 | -60.8000000000 | Map |