|⁃ location||East of Pretoria|
|955 m (3,133 ft)|
The Pienaars River is a river in South Africa. It is a tributary of the Crocodile River. A short section of this river is known as the Moretele River (i.e. approximately 20 km section between Haakdoornbult and the Klipvoor Dam). Tributaries of the Pienaars River include the Moreletaspruit (alternative spellings: Morelettaspruit, Moreleta Spruit). Note that the above-mentioned Moretele river section is 60 km away from the Moreletaspruit and these two should not be confused with one another.
It originates east of Pretoria, City of Tshwane, Gauteng Province, flowing northwards into Roodeplaat Dam (north of Mamelodi), from where it carries on northward until it passes under the N1 and turns westward. North of Makapanstad the Apies River (or rather a short section of the Tshwane River) joins it from the south, as well as the Plat River from the east. The Pienaars continues flowing westward to the Klipvoor Dam. About 25 km further downstream it joins the Crocodile River's right bank.