| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Bastan (affluent du gave de Gavarnie) |  | 107,000,000 | Gave de gavarnie | 17,200 | 42.8833333333 | -0.0166666667 | Map | ||||
| gave d'Aspé | Gave de gavarnie | 7,900 | |||||||||
| Gave d'Ossoue | Gave de gavarnie | 13,100 | 42.7500000000 | 0.0000000000 | Map | ||||||
| Gave de Héas |  | 84,000,000 | Gave de gavarnie | 12,900 | 42.7780200000 | 0.0377700000 | Map |