VERTCRS["NMVD03 height",
    VDATUM["Northern Marianas Vertical Datum of 2003"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["Northern Mariana Islands - onshore - Rota, Saipan and Tinian."],
        BBOX[14.06,145.06,15.35,145.89]],
    ID["EPSG",6640]]