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 climate is drier, it becomes a true semi-desert with ground not entirely covered by vegetation: "open" as opposed to "closed" vegetation. Examples include the north of the ZF Mgcawu District Municipality, itself in the north of South Africa, and the Keetmanshoop Rural in the southeast of Namibia. In the north and east, there are dry forests covering an area of over 300,000 km in which Rhodesian teak and several species of acacia are prominent. These regions are termed Kalahari Acacia-Baikiaea woodlands AT0709. Outside the Kalahari "desert", but in the Kalahari basin, a halophytic vegetation to the north is adapted to