| Country | France |
| Country identifier | FR |
| CRS identifier | FR_MARS / NH |
| CRS alias | NGF-IGN69 |
| CRS valid area | France |
| CRS scope | |
| CRS remarks | mean tidal system |
| Datum identifier | IGN69 |
| Datum alias | Marseille |
| Datum type | vertical |
| Datum anchor point | Marseille M.ac-O-VIII |
| Datum realization epoch | 1969 |
| Datum valid area | France |
| Datum scope |
|
| Datum remarks |
|
| Coordinate system identifier | normal heights |
| Coordinate system type | gravity related |
| Coordinate system dimension | 1 |
| Coordinate system remarks | |
| Coordinate system axis name | height |
| Coordinate system axis direction | up |
| Coordinate system axis unit identifier | metre |