| Number | 2138 |
| Lake code | PY0038 |
| District code | PY |
| Lake number | 38 |
| Prefix | Ibón |
| Official name | Vacas |
| Suffix | |
| Latitude | 42.707110 |
| Longitude | -0.380090 |
| Altitude (m) | 1780.000000 |
| Survey code | |
| Survey check | 0 |
| A_prefix | |
| Alternative name | |
| A_suffix | |
| River basin | Ebro |
| Region / Province | Aragon |
| Country | Spain |
| Map_link |