Egypt’s habitable land falls into three distinct plains:
Narrow strip (25–150 km wide) along the north coast. Sand, mud, limestone, marl—deposited by Nile and marine sediments. Includes the Nile Delta’s eastern fringe.
Vast, flat, sandy-rocky expanse from Med coast to Sudan border. Dotted with oases (Siwa, Bahariya, Farafra, Dakhla, Kharga) where groundwater allows agriculture and settlement.
Together, these plains concentrate Egypt’s population, agriculture, and history along 5% of its land area.