River Antaeo
From Tar Valon Library
A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
The Antaeo is a river in the Westlands, east of the Black Hills and close to the Maradon road. Based on it's position, it is likely it is a tributuary of the Erinin.
(Reference: The Shadow Rising, Chapter 17).
