| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aïse | Ariège | 29,300 | 43.4347222200 | 1.4386111100 | Map | ||||||
| Alses | Ariège | 11,800 | |||||||||
| Arget (rivière) | 115,000,000 | Le Bosc | Ariège | 23,000 | 42.9199000000 | 1.4120000000 | Map | ||||
| Arnave | 1,818 | Ariège | 10,900 | ||||||||
| Aston (rivière) | 165,000,000 | Ariège | 23,500 |