Gently sloping rock surface found at the foot of a coastal cliff. Covered by water at high tide but exposed at low tide, it represents the last remnant of an eroded headland (see coastal erosion). Wave-cut platforms have a gentle gradient (usually less than 1°) and can be up to about 1 km/0.6 mi in length. Over time, wave-cut platforms are lengthened and protect the cliffs behind them.
Blue symbolizes hope, the clear sky, and the streams of the south. Yellow stands for the sun and the Sahara Desert. Red represents unity, prosperity, and national sacrifice. Effective date: 6 November 1959.