From Tar Valon Library
Author: Kerna Shedrian
The West Stable is a stable in the White Tower. It is three sprawling stories of gray stone and is larger than the main stables of the Sun Palace. It is close to the Sunset Gate and the Accepted Quarters. The path that leads to the stable from the quarters is shovelled two or three times a day if necessary as most of the Aes Sedai keep their horses there.
Moiraine keeps Arrow stabled there while she is in the Tower.
(Reference: New Spring, Chapter 4)