The place

Lake Assal lies in a sunken basin between dark volcanic hills, a few kilometres inland from the Gulf of Tadjoura. Around the turquoise water lies a wide white field of salt, crusted, cracked and in places formed into balls and pillars. The lake is many times saltier than the sea, so a swimmer floats without effort. The heat is intense for much of the year, and the air shimmers above the flats. Black basalt, fresh lava flows and open fissures surround the basin. Similar salt pans spread across the low parts of the Afar region in Ethiopia. There is little sound other than wind and the crunch of salt underfoot.

Illustrated landscape plate: Salt Desert, Africa

History

The Afar Depression is where the African and Arabian plates and the Horn of Africa pull apart, and the Asal rift next to the lake is one of the few places where the kind of rifting that builds an ocean floor can be seen on land. In 1978 the ground opened and the small volcano Ardoukôba erupted nearby. Seawater from the Gulf seeps through the porous lava into the basin and evaporates in the heat, leaving salt behind. For centuries Afar caravans carried salt from Assal inland to the Ethiopian highlands. French colonial rule, as French Somaliland and later the French Territory of the Afars and the Issas, lasted until Djibouti's independence in 1977.

Why it matters for the living world

Very little lives in the salt lake itself, though specialised microbes survive in its brine and in the hot springs along the shore. The surrounding desert supports hardy shrubs and acacias, gazelles, and birds that pass along the Red Sea flyway. The real ecological interest lies in what the place shows: an ocean basin being born, with the processes of rifting, volcanism and evaporation visible at the surface. Nearby, the waters of the Ghoubbet al-Kharab and the Gulf of Tadjoura are rich in marine life, including whale sharks that gather seasonally. The geothermal heat under the rift is also a potential source of clean energy.

People of the place

The area is home mainly to the Afar people, pastoralists who herd camels and goats across the lowlands of Djibouti, Ethiopia and Eritrea and who have long cut and traded salt. In Djibouti the Issa Somali are the other main community. Some Afar families still collect salt by hand at Lake Assal and sell it to traders and visitors, though most salt is now harvested by companies for export. Afar guides and drivers work with tourists. Clan-based customary institutions continue to govern grazing and water. Life here depends on knowing where wells and grazing are, and on long-standing ties across national borders.

What it faces

Industrial salt extraction around Lake Assal has grown and changes the shoreline, and the development of geothermal energy in the rift brings drilling and roads. Rising temperatures and longer droughts make herding harder, and many families have lost animals. Tourism is small but can damage fragile salt formations. In Ethiopia's Afar salt flats, trucks and planned potash mines are changing traditional salt work. The region has also been affected by conflict. There is no formal protected area, and local voices call for planning that balances industry with the needs of Afar communities and the fragility of the landscape.

Sources

Written for Regenerative Voices from the sources above. Spotted something wrong? Tell us.