VERT_CS["CBVD61 height (ft)",
    VERT_DATUM["Cayman Brac Vertical Datum 1961",2005,
        AUTHORITY["EPSG","1099"]],
    UNIT["foot",0.3048,
        AUTHORITY["EPSG","9002"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["EPSG","6132"]]