from the highlands of Lesotho, the biggest of which is the Lesotho Highlands Water Project, but additional sources will be needed early in the 21st century.
The container terminal at City Deep is known to be the largest "dry port" in the world, with some 50% of cargo that arrives through the ports ofDurban and Cape Town arriving in Johannesburg. The City Deep area has been declared an IDZ (industrial development zone) by the Gauteng government
