The Qattara Depression (local: Munkhafad al-Qattarah) is a desert basin within the Libyan Desert of north-western Egypt. The Depression, at 133m below sea level, contains the second lowest point in Africa (See also: Lase Assal). The Depression covers about 18,130 km² (~7,000 square miles), and at its maximum is 80km in length and 120km in width. The bottom of the depression consists of a salt bog.

World War II

During World War II, this was a notable geographic feature which was considered to be impassable for the majority of military vehicles, notably tanks. Its presence shaped the Battle of El Alamein.