Trans-Kalahari Corridor South African border at Pioneer Gate/Skilpadshek. In South Africa it follows the N4 through Rustenburg to Pretoria. The route Walvis Bay–Windhoek–Lobatse–Pretoria–Maputo is route number 40 in the Southern African Development Community Regional Trunk Road Network. Trans-Kalahari Corridor The Trans-Kalahari Corridor is a paved highway corridor that provides a direct route from Walvis Bay and Windhoek in central Namibia, through Botswana, to Johannesburg and Pretoria in Gauteng province in South Africa. It initially cost approximately 850 million Namibian dollars (US$115 million) and was officially opened in 1998. The corridor also includes railway lines from Walvis Bay as far as Gobabis in
Kalahari Desert Kalahari, except on salt pans during the dry season, the vegetation cover can be clearly denser, up to almost 100% in some limited areas. In an area of about 600,000 km in the south and west of the Kalahari, the vegetation is mainly xeric savanna. This area is the ecoregion identified by World Wide Fund for Nature as Kalahari xeric savanna AT1309. Typical savanna grasses include ("Schmidtia", "Stipagrostis", "Aristida", and "Eragrostis") interspersed with trees such as camelthorn ("Acacia erioloba"), grey camelthorn ("Acacia haematoxylon"), shepherd’s tree ("Boscia albitrunca"), blackthorn ("Acacia mellifera"), and silver cluster-leaf ("Terminalia sericea"). In certain areas where the