VERTCRS["RGM_2004",
    VDATUM["D_Reseau_Geodesique_de_Mayotte_2004"],
    CS[vertical,1],
        AXIS["ellipsoidal height (h)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Not known."],
        AREA["Mayotte - onshore and offshore."],
        BBOX[-14.49,43.68,-11.33,46.7]],
    ID["ESRI",115780]]