VERTCRS["IGLD 1985 height",
    VDATUM["International Great Lakes Datum 1985"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Hydrology."],
        AREA["Canada and United States (USA) - Great Lakes basin and St Lawrence Seaway."],
        BBOX[40.99,-93.17,52.22,-54.75]],
    ID["EPSG",5609]]