GEOGCS["GCS_CSG67_geographiques_dms",DATUM["D_CSG_1967",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],VERTCS["NIVELLEMENT_GENERAL_DE_GUYANE_NGG_1977",VDATUM["NIVELLEMENT_GENERAL_DE_GUYANE_NGG_1977"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]]