Plizio Visual Lab

Chott Melrhir

Plizio editorial teamUpdated: Jun 2026Data Sources

Lake

Weather…

Chott Melrhir is an endorheic salt lake in northeastern Algeria and serves as an ecologically significant wetland amidst the arid Sahara. Located approximately 40 meters below sea level, it represents the lowest point in the country. The basin fills only seasonally following heavy rains, with water brought from the Aurès Mountains through various wadis such as Wadi Jeddi. During the dry months, the water evaporates almost entirely, leaving behind a vast, shimmering salt crust that forms a stark yet fascinating landscape. Since 2003, the lake has been protected as a Ramsar site because it plays a critical role as a resting point for numerous migratory bird species, including greater flamingos. The surrounding vegetation is highly adapted to high salinity, consisting primarily of halophytes that can survive in this extreme microclimate. Human activities are restricted to traditional salt mining and very sparse nomadic livestock herding in the marginal areas.

Location: Algeria
Nearby: Biskra (87 km)

📋 Practical info

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Getting there

Access to this remote endorheic lake often involves navigating rugged desert tracks from nearby towns like Biskra. A reliable 4x4 vehicle and the accompaniment of an experienced local guide are highly recommended to reach the desolate shores safely.

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Best season

Exploring the region is vastly more pleasant and safe during the winter and early spring months, roughly November to March. The extreme heat of the Algerian summer bakes the basin, making unshaded travel highly demanding and severely draining.

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Terrain & paths

The area represents the lowest point in the country, featuring an immense depression that is often entirely dry. Following winter rains, shallow, highly saline water can transform parts of it into a vast mirror, leaving thick mud along the driving edges.

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What to bring

Preparation is key: pack extensive sun protection, high-quality sunglasses to combat the harsh light, and ample emergency provisions including excess water. Closed, durable shoes will protect your feet when traversing the abrasive, hard salt crusts.

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Parking

Vehicles are generally parked informally on the solid desert ground at the very edge of the depression. Driving onto the actual bed of the lake is extremely risky, so visitors usually stop well short of the soft, dangerous sediment margins of the lake.

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Safety

Navigating this vast and featureless terrain without a guide can quickly lead to dangerous disorientation or getting a vehicle hopelessly bogged down. Always travel in a convoy if possible, and carry satellite communication in this remote desert region.

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Time needed

A visit typically constitutes a short excursion of one to two hours from a nearby desert base camp, primarily to take in the sheer geographical magnitude. Expeditions passing through will simply pause briefly to observe the lowest point in the country.

Geography

Coordinates

34.25000, 6.33000

Facts

The lake is located 40 meters below sea level at its lowest point.
The maximum surface area of the water reaches approximately 6,700 square kilometers.
The area was officially designated as a Ramsar wetland site in 2003.
Wadi Jeddi is the longest seasonal river that feeds the basin with rainwater.
The salt crust can reach a thickness of several centimeters during the dry summer.
In wet years, the lake serves as a significant breeding ground for greater flamingos.