This is called the West Rand Group and it created several interesting topographical features such as the eponymous Witwatersrand ridge which runs between Germiston and Krugersdorp.
Leswi swivuriwa West Rand Group naswona swivange swivumbeko leswi tsakisaka hiswivonaka, kufana na eponymous Witwatersrand ridge leyi kumekaka exikarhi ka Germiston na Krugersdorp.