Chott el Djerid
Largest salt pan of the Sahara Desert.
Chott el Djerid is a large endorheic salt lake in central Tunisia, also known as a chott. It is the largest salt pan of the Sahara Desert, with a surface area of over 7,000 km² (some sources state 5,000 km²). The lake is notable for its extreme climate, dramatic color changes, and dangerous crossing conditions.
- type
- Endorheic salt lake (chott)
- location
- Central Tunisia, between Tozeur and Kebili
- elevation
- 15 to 25 meters above sea level
- width
- 20 km at narrowest point
- surface_area
- Over 7,000 km² (some sources state 5,000 km²)
- climate
- Hot desert climate, mean annual rainfall below 100 mm
Lore & Background
Chott el Djerid lies in central Tunisia, between the cities of Tozeur and Kebili. Its bottom is 15 to 25 meters above sea level. At times, parts of it appear in various shades of white, green and purple. The narrow eastward inlet is also known as Chott el Fejej. During summer, the lake is almost entirely dried up, and numerous fata morganas occur. In winter, small tributaries discharge into the lake. Because the flooded area is very variable, values for surface area can vary widely, with standard geographical references typically citing around 5,000 to 7,000 km².
Reader's Guide
Chott el Djerid is significant as the largest salt pan in the Sahara Desert, covering over 7,000 km². Its harsh climate, with daytime temperatures sometimes reaching 50 °C and mean annual rainfall below 100 mm, causes near-total evaporation in summer and frequent mirages. The lake can be crossed by foot or car, but this is dangerous due to unstable salt crust. In winter, it can be crossed by boat. Relict populations of the West African crocodile persisted there until the early 20th century, and pink flamingos use its shores as nesting sites in spring. The lake has inspired cultural works, including being a filming location for the Star Wars series, a setting in Jules Verne's last novel, and a legend of Athena's birth. It is also the namesake of the Jerid Lacuna, a hydrocarbon lake on Saturn's moon Titan.
Did You Know?
- Chott el Djerid is the namesake of the Jerid Lacuna, an endorheic hydrocarbon lake on Saturn's moon Titan.
- During summer, numerous fata morganas occur due to the extreme heat and evaporation.
Frequently Asked Questions
What is Chott el Djerid?
Chott el Djerid is a vast endorheic salt lake, or chott, situated in central Tunisia. It holds the distinction of being the single largest salt pan within the Sahara Desert.
Where exactly is Chott el Djerid located?
It stretches between the Tunisian towns of Tozeur and Kebili in the country's central region. The basin sits at an elevation of roughly 15 to 25 meters above sea level.
Why is Chott el Djerid considered significant among desert features?
It is the largest salt pan in the entire Sahara, making it a defining landscape of North African arid geography. Its extreme climate, shifting surface colors, and treacherous crossing conditions have made it a well-known hazard for travelers in the region.
What makes crossing Chott el Djerid dangerous?
The flat, featureless salt crust can shift and crack underfoot, and the intense heat combined with a total lack of landmarks disorients anyone attempting to traverse it on foot. Navigational errors in such an open, monotonous terrain can quickly become life-threatening.
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