VERT_CS["NIVELLEMENT GENERAL DE LIFOU (IGN 1991 LF)",
    VERT_DATUM["NIVELLEMENT GENERAL DE LIFOU (IGN 1991 LF)",2005,
        AUTHORITY["IGNF","REA036"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["IGNF","LIFOU91"]]