VERTCRS["GCVD54 height (ft)",
    VDATUM["Grand Cayman Vertical Datum 1954"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["foot",0.3048]],
    USAGE[
        SCOPE["Geodesy, engineering survey."],
        AREA["Cayman Islands - Grand Cayman."],
        BBOX[19.21,-81.46,19.41,-81.04]],
    ID["EPSG",6130]]