Geography of namibia
Some 130 million years ago a super continent known as Gondwana tore asunder and left the southern continents we know today as relics. Namibia once locked in the very heart of Gondwana, now lay on the western littoral of Africa. When the fireworks from the throes of continental separation subsided, large volcanoes survived as mountains, like the Brandberg and Spitzkop. From that time and before Namibia has ghost rivers left behind when the ice age glaciers crawled across the land, it has the tracks of dinosaurs embedded in sandstone where they once walked and the coast which originated simultaneously with the Atlantic ocean when primordial forces changed the face of the planet.
With its surface area of 824,268sqkm, Namibia is a vast country, it's more than three times the size of Great Britain and twice that of Germany. It is situated on the south-western Atlantic coast of the African sub continent, bordering on Angola, Botswana and South Africa. In the far north-east is the Caprivi strip, an elongated pan handle consisting of tropical riverine swamp lands also bordered by Zimbabwe and Zambia. Namibia can be divided into four distinct topographical regions. Of these the most definitive in the Namib Desert from which Namibia derives its name. It is one of the oldest deserts in the world, maybe the very oldest, the Namib was already arid at least 80 million years ago. The Namib desert covers some 15% of Namibia with dune seas, gravel plains and deeply eroded canyons such as the Fish River Canyon which is 160km in length, up to 27km wide and reaches a depth of 550 metres. The central plateau, which runs from north to south, has an average altitude of between 1000 and 2000m, with landscapes ranging from rugged mountain ranges and rocky outcrops to sand filled valleys and endless plains. This plateau gradually falls away towards the east where a sandy strip of land merges into the level expanse of the Kalahari desert. The Kalahari sandveld sprawls into Botswana, Angola, Zambia and Zimbabwe. In the north it broadens considerably to include the plains around Etosha Pan as well as Kavango and Caprivi. Almost half the size of Lebanon, the Etosha Pan is big enough to be classified as a saline desert.
Granite mountains stand isolated like steep islands on the plains of the inner Namib, one of them - the Brandberg massif - the highest in Namibia at a height of 2579m. The only perennial rivers are on Namibia's borders. In the north are the Kunene, Kavango, Zambezi and Kwando Rivers. On the southern border is the Orange River. None of the perennial rivers originate in Namibia. Rivers within the country - even the longest, the 600km Fish - are all ephemeral. They flow only after strong rains in their catchments, not necessarily along their entire lengths and not for long. The bigger ones retain water in pools for some months after a flood, but the rest are dry with white sandy bottoms for most of the year