VERT_CS["DRUKREF_03",VERT_DATUM["D_Bhutan_National_Geodetic_Datum",2002,AUTHORITY["ESRI","from_geogdatum_EPSG_1058"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Ellipsoidal height",UP],AUTHORITY["ESRI","115711"]]