Floating mass of ice, about 80% of which is submerged, rising sometimes to 100 m/300 ft above sea level. Glaciers that reach the coast become extended into a broad foot; as this enters the sea, masses break off and drift towards temperate latitudes, becoming a danger to shipping.
The emblem was added to distinguish the flag from that of Italy. The design is based on the French tricolour. The colours are those of the Mexican liberation army. Effective date: 23 November 1968.