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
Sonoran Desert desert is a popular route to attempt unauthorized entry across the border. The harsh conditions mean that the 3-5-day march, usually moving at night to minimize exposure to the heat, often ends in death. There are many National Parks and Monuments; federal and state nature reserves and wildlife refuges; state, county, and city parks; and government or nonprofit group operated natural history museums, science research institutes, and botanical gardens and desert landscape gardens. Sonoran Desert The Sonoran Desert is a North American desert which covers large parts of the Southwestern United States in Arizona and California and of Northwestern Mexico