Aigue de la Forest
A ford where Bors, after stealing Arthur’s horse, defeated Sagramore, Bedivere, Lucan, and Kay, taking their horses as well.
In the Vulgate IV we can read it should be located in a forest below Rouen.
Note
Ford is a word for “a shallow place where water can be crossed”, a place allowing one to walk, ride or drive across.
Source
Vulgate Lancelot | 1215-1230