COMPD_CS["DrukRef23 + Bhutan Vertical Datum 2022 height",
    GEOGCS["DrukRef23",
        DATUM["National_Reference_Frame_of_Bhutan_2023",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","1448"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","11226"]],
    VERT_CS["Bhutan Vertical Datum 2022 height",
        VERT_DATUM["Bhutan Vertical Datum 2022",2005,
            AUTHORITY["EPSG","1451"]],
        UNIT["metre",1,
            AUTHORITY["EPSG","9001"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","11338"]],
    AUTHORITY["EPSG","11383"]]