VERTCRS["Reunion 1989 height",
    VDATUM["Reunion 1989"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["Reunion - onshore."],
        BBOX[-21.42,55.16,-20.81,55.91]],
    ID["EPSG",5758]]