| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Isna River | 305,000,000 | Zêzere River | 45,500 | 39.7275000000 | -8.2211111100 | Map | |||||
| Nabão River |  | Ansião | Zêzere River | 66,000 | 39.5202777778 | -8.3558333333 | Map | ||||
| Unhais |  | Zêzere River | 39.9626600000 | -8.1068620000 | Map |