From Dragon Eye Atlas

The Kezisa flows from Ebronland through the Nanalanda Territory in Njombia towards the west until it merges with the Tarif river.

The river is shallow, fast-flowing and rocky for most of its course, making it unsuitable for boats. As a consequence, only a small number of rivers are found at its shores. The second reason is that it is home to a type of poison viper that hunts both in the water and along the shores, and is dangerous enough for both humans and dwarves.