| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Arapey Chico River | Arapey Grande River | 115,000 | -30.9530000000 | -57.5087000000 | Map | ||||||
| Arroyo Arerunguá | Arapey Grande River | ||||||||||
| Arroyo del Sauce (Arapey) | Arapey Grande River | ||||||||||
| Arroyo Mataojo Grande | Arapey Grande River | -31.1690800000 | -56.6802400000 | Map | |||||||
| Arroyo Sopas | Arapey Grande River | -31.2312100000 | -57.0654900000 | Map |