Riet River (Doring)

Riet River
River
Name origin: From the word for "reed" in the Afrikaans language
Country	South Africa
Province	Western Cape
Source
- location	Koue Bokkeveld
Source confluence	Winkelhaak / Houdenbeks
- elevation	971 m (3,186 ft)
- coordinates	33°09′30″S 19°26′06″E / 33.15833°S 19.43500°E / -33.15833; 19.43500
Mouth	Doring River
- location	De Mond
- elevation	392 m (1,286 ft)
- coordinates	32°30′47″S 19°33′18″E / 32.51306°S 19.55500°E / -32.51306; 19.55500Coordinates: 32°30′47″S 19°33′18″E / 32.51306°S 19.55500°E / -32.51306; 19.55500
Location of the Riet River mouth

The Riet River (Afrikaans: Rietrivier) is a river in the Western Cape Province, South Africa. It is part of the Olifants/Doring River system.

It originates in the Koue Bokkeveld Mountains north of Ceres at the confluence of the Winkelhaak River and Houdenbeks River, flowing roughly northwards. After the Groot River joins its left bank it turns eastwards. Below this confluence, the Riet River is joined by the Brandkraals River on its right bank and by the Matjies River on its left side, after which it flows into the Doring River at a place known as De Mond.

The Clanwilliam Yellowfish (Labeobarbus capensis), a local endemic species classified as Vulnerable by the IUCN, is still found in the Doring and other rivers of its basin.