VERTCRS["VIVD09 height",
    VDATUM["Virgin Islands Vertical Datum of 2009"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["US Virgin Islands - onshore - St Croix, St John, and St Thomas."],
        BBOX[17.62,-65.09,18.44,-64.51]],
    ID["EPSG",6642]]