VERTCRS["Tutuila 1962 height",
    VDATUM["Tutuila Vertical Datum of 1962"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["American Samoa - Tutuila island."],
        BBOX[-14.43,-170.88,-14.2,-170.51]],
    ID["EPSG",6638]]