| No. | 138 | View Larger Map |
| INDEX | SAN MARTIN | |
| ENGLISH NAME | Lake San Martin | |
| LOCAL NAME | Lago San Martin | |
| CONTINENT | South America | |
| NATIONS | Argentina, Chile | |
| Latitude (deg) | -48.87 | |
| Longitude (deg) | -72.67 | |
| Area (km2) | 1,010 | |
| Maximum depth (m) |
836 | |
| Volume (km3) | 68 | |
| Elevation (m) | 250 | |
| Bottom Level (m) |
-586 | |
| fresh/salt | fresh |