What is "roodepoort"

Roodepoort is a city in the Greater Johannesburg area, Gauteng, South Africa. Johannesburg's most famous botanical garden, Witwatersrand National Botanical Gardens (now renamed Walter Sisulu National Botanical Garden), is located in Roodepoort. Formerly an independent municipality, Roodepoort became part of the City of Johannesburg Metropolitan Municipality in the late 1990s, along with Randburg and Sandton.