|Name origin: Origin of name uncertain, perhaps from the Zulu imbavana or impivane, meaning 'waterbuck'.|
|- location||North of Utrecht|
|- elevation||2,100 m (6,890 ft)|
|- elevation||480 m (1,575 ft)|
The ultimate source of the river is at over 2,000 m a.s.l. in the highlands north of Utrecht. It flows and flows between Paulpietersburg and Vryheid and joins the Pongola on the western boundary of the Ithala Game Reserve, not far from the border with Swaziland.
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