COMPD_CS["CSG67 geographiques (dms) et NIVELLEMENT GENERAL DE GUYANE (NGG) 1977",GEOGCS["CSG67 geographiques (dms)",DATUM["Centre_Spatial_Guyanais_1967",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6623"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["IGNF","CSG67G"]],VERT_CS["NIVELLEMENT GENERAL DE GUYANE (NGG) 1977",VERT_DATUM["NIVELLEMENT GENERAL DE GUYANE (NGG) 1977",2005,AUTHORITY["IGNF","REA016"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["IGNF","GUYA77"]],AUTHORITY["IGNF","CSG67G.GUYA77"]]