VERT_CS["NIVELLEMENT GENERAL DE MARE (IGN 1991 MR)",VERT_DATUM["NIVELLEMENT GENERAL DE MARE (IGN 1991 MR)",2005,AUTHORITY["IGNF","REA035"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["IGNF","MARE91"]]