Danakil Depression in the context of "Afar Depression"

A salt lake or saline lake is a landlocked body of water that has a concentration of salts (typically sodium chloride) and other dissolved minerals significantly higher than most lakes (often defined as at least three grams of salt per liter). In some cases, salt lakes have a higher concentration of salt than sea water; such lakes can also be termed hypersaline lake, and may also be pink lakes on account of their color. An alkalic salt lake that has a high content of carbonate is sometimes termed a soda lake.

Salt lakes are classified according to salinity levels. The formation of these lakes is influenced by processes such as evaporation and deposition. Salt lakes face serious conservation challenges due to climate change, pollution and water diversion.

The Sultanate of Aussa was a kingdom that existed in the Afar Triangle in southern Eritrea, eastern Ethiopia and western Djibouti from the 18th to the 20th century. It was considered to be the leading monarchy of the Afar people, to whom the other Afar rulers nominally acknowledged primacy.

Throughout the region’s history the Afar were lauded as great warriors whose slaying was held in higher regard than that of the Oromos to the soldiers of the Kingdom of Shewa. The expanding Ethiopians laid claim to the region but were met with harsh resistance due to the Afar's skills in desert warfare and that the Abyssinians were a highlander people "unsuited by nature to operations in these hot and feverish lowlands - To subdue them would indeed prove no easy task, taking into consideration the waterless nature of their country away from the (Awash River) river, and the unhealthy conditions prevalent along its banks." Due to this, and more, the Danakil country managed to remain independent from the Khedivate of Egypt and autonomous within the later Ethiopian Empire, unlike other (similar) groups in the region and the previous Dankali Sultanate.

Lake Karum (also known as Lake Assale or Asale) is a salt lake in the Afar Region of Ethiopia. One of two salt lakes in the northern end of the Danakil Depression (the other one being Lake Afrera), it lies 120 m (394 ft) below sea level. The volcano Erta Ale rises southeast of this lake.

Werner Munzinger, who traveled through the Afar Depression in 1867, recorded that this lake was fed by four streams: The Didic, the Ala, the Rira Guddy, and the Ragali or Awra, which is the only permanent stream flowing into Lake Karum.

The Afar Region (/ˈɑːfɑːr/; Afar: Qafar Rakaakayak; Amharic: ዓፋር ክልል), formerly known as Region 2, is a regional state in northeastern Ethiopia and the homeland of the Afar people. Its capital is the planned city of Semera, which lies on the paved Awash–Assab highway. It is bordered by Eritrea to the north and Djibouti to the northeast; it also shares regional borders with the Tigray, Amhara, Oromo and Somali regions.

The Afar Triangle, the northern part of which is the Danakil Depression, is part of the Great Rift Valley of Ethiopia, and is located in the north of the region. It has the lowest point in Ethiopia and one of the lowest in Africa. The southern part of the region consists of the valley of the Awash River, which empties into a string of lakes along the Djibouti–Ethiopia border. Other notable landmarks include the Awash National Park.