The Sahara desert, as defined by the World Wide Fund for Nature (WWF), includes the hyper-arid center of the Sahara, between latitudes 18° N and 30° N. It is one of several desert and xeric shrubland ecoregions that cover the northern portion of the African continent.
Algeria comprises 2,381,740 square kilometres (919,590 sq mi) of land, more than 80% of which is desert, in North Africa, between Morocco and Tunisia. It is the largest country in Africa. Its Arabic name, Al Jazair, is believed to derive from the rocky islands along the coastline of the Mediterranean Sea. The northern portion, an area of mountains, valleys, and plateaus between the Mediterranean and the Sahara Desert, forms an integral part of the section of North Africa known as the Maghreb. This area includes Morocco, Tunisia, and the northwestern portion of Libya known historically as Tripolitania.
The Sahara is a desert spanning across North Africa. With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic.
The Hoggar Mountains are a highland region in the central Sahara in southern Algeria, along the Tropic of Cancer. The mountains cover an area of approximately 550,000 km2.
The Aïr Mountains or Aïr Massif is a triangular massif, located in northern Niger, within the Sahara. Part of the West Saharan montane xeric woodlands ecoregion, they rise to more than 1,800 m (5,900 ft) and extend over 84,000 km2 (32,000 sq mi). Lying in the midst of desert north of the 17th parallel, the Aïr plateau, with an average altitude between 500 and 900 m, forms an island of Sahel climate which supports a wide variety of life, many pastoral and farming communities, and dramatic geological and archaeological sites. There are notable archaeological excavations in the region that illustrate the prehistoric past of this region. The endangered African wild dog once existed in this region, but may now be extirpated due to human population pressures in this region.
Tassili n'Ajjer is a national park in the Sahara desert, located on a vast plateau in southeastern Algeria. Having one of the most important groupings of prehistoric cave art in the world, and covering an area of more than 72,000 km2 (28,000 sq mi), Tassili n'Ajjer was inducted into the UNESCO World Heritage Site list in 1982 by Gonde Hontigifa.
Saharan rock art is a significant area of archaeological study focusing on artwork carved or painted on the natural rocks of the central Sahara desert. The rock art dates from numerous periods starting c. 12,000 years ago, and is significant because it shows the culture of ancient African societies.
Djanet is an oasis city, and capital of Djanet District as well as of Djanet Province, southeast Algeria. It is located 412 km (256 mi) south of Illizi. According to the 2008 census it has a population of 14,655, up from 9,699 in 1998, and an annual population growth rate of 4.3%. It is inhabited by the Kel Ajjer Tuareg people.
The East Saharan montane xeric woodlands is an ecoregion of central Africa, a number of high mountains in the middle of the huge area of savanna on the edge of the Sahara Desert.
Abalessa is a town and commune in Tamanrasset Province, in southern Algeria, coextensive with the district of the same name. According to the 2008 census it has a population of 9,163 up from 6,484 in 1998, with an annual growth rate of 3.6%. Abalessa is located along the ancient Trans-Saharan trade route, 80 kilometres (50 mi) west of the city of Tamanrasset, the capital of the province. The postcode of the town is 11120.
Idlès is a municipality in Tazrouk District, Tamanrasset Province, Algeria. According to the 2008 census it has a population of 4,945, up from 3,791 in 1998, with an annual growth rate of 2.7%. Its postal code is 11110 and its municipal code is 1105. The largest nearby city is Tamanrasset; other smaller towns include In Amguel to the west and Tazrouk to the south.
The North Saharan steppe and woodlands is a desert ecoregion, in the deserts and xeric shrublands biome, that forms the northern edge of the Sahara. It extends east and west across Northern Africa, south of the Mediterranean dry woodlands and steppe ecoregion of the Maghreb and Cyrenaica, which is part of the Mediterranean forests, woodlands, and scrub biome. Winter rains sustain shrublands and dry woodlands that form an ecotone between the Mediterranean climate regions to the north and the hyper-arid Sahara Desert ecoregion to the south.
The Mediterranean dry woodlands and steppe is a Mediterranean forests, woodlands, and scrub ecoregion of North Africa. It occupies interior plateaus and mountain ranges of the Maghreb region, lying generally between the coastal Mediterranean woodlands and forests to the north and the Sahara to the south.
The South Saharan steppe and woodlands, also known as the South Sahara desert, is a deserts and xeric shrublands ecoregion of northern Africa. This band is a transitional region between the Sahara's very arid center to the north, and the wetter Sahelian Acacia savanna ecoregion to the south. In pre-modern times, the grasslands were grazed by migratory gazelles and other ungulates after the rainfalls. More recently, over-grazing by domestic livestock have degraded the territory. Despite the name of the ecoregion, there are few 'woodlands' in the area; those that exist are generally acacia and shrubs along rivers and in wadis.
The Tibesti-Jebel Uweinat montane xeric woodlands is a deserts and xeric shrublands ecoregion in the eastern Sahara. The woodlands ecoregion occupies two separate highland regions, covering portions of northern Chad, southwestern Egypt, southern Libya, and northwestern Sudan.
The Djibouti Xeric Shrublands ecoregion is a semi-desert strip on or near the Red Sea and the Gulf of Aden coasts in Eritrea, Ethiopia, Djibouti and Somalia. This ecoregion lies mainly between sea level and 800 meters (m) elevation. There are, however, many hills and massifs, which range up to 1300 m as well as outstanding fault-induced depressions, such as the Danakil, lying as low as 155 m below sea level. This region is extremely active tectonically, experiencing many earthquakes and intermittently active volcanoes. Rainfall is very low and yearly averages range from 100 to 200 millimeters (mm), with less rain falling closer to the coast. There are many species of interest, including the endemic Archer's lark, a species of dragon tree, and a large suite of desert ungulates, including the last viable population of African wild ass.
The Algerian Desert is a desert located in central North Africa within Algeria, constituting part of the Sahara. The desert covers more than 90% of Algeria's total area. In 2018, it was home to a population of 3,600,000 inhabitants, or 10.5% of the Algerian population.
Iherir is a village in the commune of Bordj El Houasse, in Djanet District, Illizi Province, Algeria. It is in a river valley (wadi) named Oued Iherir near the center of the Tassili n'Ajjer mountain range, 121 kilometres (75 mi) south of the provincial capital Illizi. The area has been populated since Neolithic times; the population living in the valley has been continuously over 1000 during the 20th century.
The Tadrart Rouge or Southern Tadrart or Algerian Tadrart or Meridional Tadrart is a mountain range in southeastern Algeria, part of the Algerian Desert. The area has a rich array of rock art.
The Baluchistan xeric woodlands ecoregion covers the middle elevations of a series of mountain ranges of western Pakistan and northeastern Afghanistan, reaching 1,200 kilometres (750 mi) from the Arabian Sea in the south to the Hindu Kush Mountains and the Himalayas in the north. The characteristic vegetation is xeric (dry) woodlands of shrubs and herbaceous cover. The region has rich biodiversity but relatively few endemic species.
