At 824,292 km2 (318,261 sq mi), Namibia is the world's thirty-fourth largest country. After Mongolia, Namibia is the second least densely populated country in the world.
The Namib is a coastal desert in southern Africa. The name Namib is of Khoekhoegowab origin and means "vast place". According to the broadest definition, the Namib stretches for more than 2,000 kilometres (1,200 mi) along the Atlantic coasts of Angola, Namibia, and South Africa, extending southward from the Carunjamba River in Angola, through Namibia and to the Olifants River in Western Cape, South Africa. The Namib's northernmost portion, which extends 450 kilometres (280 mi) from the Angola-Namibia border, is known as Moçâmedes Desert, while its southern portion approaches the neighboring Kalahari Desert. From the Atlantic coast eastward, the Namib gradually ascends in elevation, reaching up to 200 kilometres (120 mi) inland to the foot of the Great Escarpment. Annual precipitation ranges from 2 millimetres (0.079 in) in the most arid regions to 200 millimetres (7.9 in) at the escarpment, making the Namib the only true desert in southern Africa. Having endured arid or semi-arid conditions for roughly 55–80 million years, the Namib may be the oldest desert in the world and contains some of the world's driest regions, with only western South America's Atacama Desert to challenge it for age and aridity benchmarks.
The Namib-Naukluft Park is a national park in western Namibia, situated between the coast of the Atlantic Ocean and the edge of the Great Escarpment. It encompasses part of the Namib Desert, the Naukluft mountain range, and the lagoon at Sandwich Harbour. The best known area of the park and one of the main visitor attractions in Namibia is Sossusvlei, a clay pan surrounded by sand dunes, and Sesriem, a small canyon of the Tsauchab. The desert research station of Gobabeb is situated within the park.
The Kuiseb River is an ephemeral river in western-central Namibia. Its source is in the Khomas Highland west of Windhoek. From there it flows westwards through the Namib-Naukluft National Park and the Namib desert to Walvis Bay. Several settlements of the Topnaar people are on the banks of the lower Kuiseb, for instance Homeb, Sandfontein, Rooibank, and Utuseb. Inflows of the Kuiseb are Gomab, Ojab, Chausib, Gaub, Koam, Nausgomab and Goagos.
The Ugab River is an ephemeral river in north-western Namibia. Its lower section forms the border between Kunene Region and Erongo Region but its catchment area extends well into the Otjozondjupa Region. Ugab's source is near Otavi. From there it the riverbed leads westwards past the Paresis Mountains and the Fransfontein Mountains into the Skeleton Coast and the Atlantic Ocean. Inflows of the Ugab are Erundu, Ozongombo, Okomize and Uis.
Dune 45 is a star dune in the Sossusvlei area of the Namib Desert in Namibia. Its name comes from the fact that it is at the 45th kilometre of the road that connects the Sesriem gate and Sossusvlei. Standing over 170 m, it is composed of 5-million-year-old sand that is detritus accumulated by the Orange River from the Kalahari Desert and then blown here..
Solitaire is a small settlement in the Khomas Region of central Namibia near the Namib-Naukluft National Park. It currently features the only gasoline station, bakery, cafe, and the only general dealer between the dunes at Sossusvlei and the coast at Walvis Bay, as well as to the capital Windhoek. Solitaire belongs to the Windhoek Rural electoral constituency.
Sossusvlei is a salt and clay pan surrounded by high red dunes, located in the southern part of the Namib Desert, in the Namib-Naukluft National Park of Namibia. The name "Sossusvlei" is often used in an extended meaning to refer to the surrounding area, which is one of the major visitor attractions of Namibia.
The Swakop River is a major river in western central Namibia. Its river source is in the Khomas Highland. From there it flows westwards through the town of Okahandja, the historic mission station at Gross Barmen, and the settlement of Otjimbingwe. It then crosses the Namib desert and reaches the Atlantic Ocean at Swakopmund. The Swakop is an ephemeral river; its run-off is roughly 40 million cubic metres per annum.
Sesriem is a small settlement in the Namib Desert, in the Hardap Region of Namibia, close to the southern end of the Naukluft Mountains. It is especially known because the "Sesriem gate" is the main access point to the Namib-Naukluft National Park for visitors entering the park to visit the nearby tourist attraction of Sossusvlei. As many "settlements" in the Namib, Sesriem is essentially a filling station with basic services such as public telephones and a couple of small kiosks where travellers can get general supplies such as food and water. In the surroundings of Sesriem there are several accommodations, such as a few lodges and 24 campsites.
The river Khan is an ephemeral river crossing the Erongo region of central Namibia. It is the main tributary of the Swakop River and only occasionally carries surface water during the rain seasons in November and February/March. Khan's catchment area including its tributaries Slang and Etiro is 8,400 square kilometres (3,200 sq mi).
The Omaruru River is a major river crossing the Erongo Region of western central Namibia from East to West. It originates in the Etjo Mountains, crosses the city of Omaruru and the village of Okombahe, and reaches the sea a few kilometers north of Henties Bay. Inflows of the Huab are Otjimakuru, Goab, Spitzkop, Leeu and Okandjou.
The Uniab River is an ephemeral river on Namibia's Skeleton Coast, located between Torra Bay and Terrace Bay. Its mouth is in the Grootberg Mountains near Palmwag. Inflows of the Uniab are Kaikams, Kawakab, Aub, Urenindes and Obob. The river once created a large river delta with five main watercourses. Today it continues to flow only in one of the watercourses, but subterranean water surfaces as springs in the other channels. Uniab's catchment area is estimated to be between 3961 and 4,500 km2 (1,700 sq mi).
The Hoanib is one of the 12 ephemeral seasonal rivers in the west of Namibia, where it was the border between northern Damaraland and Kaokoland. Its length is 270 km. With the low population density, the oasis character of the river valley and the relatively high wildlife population of Hoanib, together with the Hoarusib its valley is one of the last true wilderness areas in Namibia, one of the last settlements of desert elephants and shows strong wind and water eroded and weathered stone deposits. Inflows of Hoanib are Aap River, Otjitaimo River, Ombonde, Ganamub, Mudorib and Tsuxub.
The Hoarusib River is an ephemeral river in the Kunene Region of north-western Namibia. Its source is near the regional capital Opuwo, and the river flows through the Tonnesen and Giraffe Mountains into the Atlantic Ocean. The Hoarusib occasionally carries surface water during the rainy seasons in November and February/March. The catchment area of the Hoarusib is 15,237 square kilometres (5,883 sq mi).
The river Khumib is an ephemeral river crossing the Kunene Region of north-western Namibia. It occasionally carries surface water during the rainy seasons in November and February/March. Its catchment area is estimated between 2200 and 2,300 square kilometres (890 sq mi).
The Koigab River is an ephemeral river on Namibia's Skeleton Coast. Its mouth is in the Grootberg Mountains near Bergsig, where its two inflows, the Gui-Tsawisib and the Springbok are located. Koigab's catchment area is estimated to be between 2320 and 2,400 km2 (930 sq mi).
The Huab River is an ephemeral river in the Kunene Region of north-western Namibia. Its source is southeast of Kamanjab, from where it flows westwards through Mopane savanna until it reaches the Skeleton Coast and the Atlantic Ocean. Inflows of the Huab are Klein Omaruru, Sout, Aba Huab, Ongwati and Klip. Uniab's catchment area is estimated to be between 14,800 and 16,465 km2 (6,357 sq mi), and includes the town of Khorixas as well as the settlements Kamanjab, Fransfontein, and Anker. The Twyfelfontein World Heritage Site is located on the banks of the Aba Huab.
The Tsondab River is an ephemeral river in the Hardap Region of central Namibia. Its source is in the Remhoogte Mountains. From there it flows westwards through the Namib-Naukluft National Park before evaporating at Tsondabvlei. Inflows of the Tsondab are Diep, Noab and Koireb. Tsondab's catchment area is 3,500 km2 (1,400 sq mi).
