| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Caeté River (Acre) | 3,640,000,000 | Iaco River | 240,000 | -9.0493730000 | -68.6480730000 | Map | |||||
| Macauã River | Iaco River | -9.1876440000 | -68.7179200000 | Map |