VERTCRS["Cadastre_1997",
    VDATUM["D_Cadastre_1997"],
    CS[vertical,1],
        AXIS["ellipsoidal height (h)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Not known."],
        AREA["Mayotte - onshore."],
        BBOX[-13.05,44.98,-12.61,45.35]],
    ID["ESRI",115704]]