VERTCRS["One Tree Point 1964 height",
    VDATUM["One Tree Point 1964"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["New Zealand - North Island - One Tree Point vertical CRS area."],
        BBOX[-36.41,172.61,-34.36,174.83]],
    ID["EPSG",5767]]