Overview
The Mooi River is a river in North West Province, South Africa. It is a tributary of the Vaal River and belongs to the Upper Vaal Water Management Area.
Course
The Mooi rises near Koster and flows southwards. During its course it flows into the Klerkskraal Dam, Boskop Dam and the Potchefstroom Dam. After crossing the town of Potchefstroom it bends southwestwards, shortly bending westwards before it empties into the Vaal River near the border with the Free State, about 15 km east of Stilfontein.
Its main tributaries are the Wonderfonteinspruit (Mooirivierloop) and the Loop Spruit.
The waters of the Mooi River and its reservoirs are polluted with heavy metals in its mid and lower course because of the large gold and uranium mining operations in the basin.
From Wikipedia (CC BY-SA 4.0).