| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Arroyo Ñañez | Arroyo negro | -32.5794444400 | -57.9625000000 | Map | |||||||
| Arroyo Bellaco (Uruguay) | Arroyo negro | -32.4741666700 | -58.1738888900 | Map | |||||||
| Arroyo González | Arroyo negro | ||||||||||
| Arroyo Gutiérrez Grande | Arroyo negro | -32.5776300000 | -57.9042800000 | Map | |||||||
| Arroyo Valdez | Arroyo negro |