VERT_CS["NGVD29 height (ftUS)",
    VERT_DATUM["National Geodetic Vertical Datum 1929",2005,
        AUTHORITY["EPSG","5102"]],
    UNIT["US survey foot",0.304800609601219,
        AUTHORITY["EPSG","9003"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["EPSG","5702"]]