VERTCRS["SHOM 1977 (ILES GLORIEUSES - CANAL DE MOZAMBIQUE)",
    VDATUM["SHOM 1977 (ILES GLORIEUSES - CANAL DE MOZAMBIQUE)"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["LOCALE A CARACTERE LEGAL"],
        AREA["ILES GLORIEUSES"],
        BBOX[-11.62,47.25,-11.43,47.47]],
    ID["IGNF","GLOR77"]]