Major rivers of Avlis?

[Nob]

This is another one of those "out of curiosity" things, but what major rivers are named and where do they flow from?

So far the named rivers I've seen on the list are:
The Nomad(The one that runs straight north-south in Kurathene, a damned long one with several major branches/tributaries)
The Divalok(Running east-west which is the major basis for the Seven Cities)
The Spriteblood(Which is apparently either neighboring or feeding into the Divalok, as the city of Brekon is supposed to along it.)
The Eridanus? (Only one represented in game, from Lake Eridanus to the sea.)

Camb's map has at least 3 other large rivers.

One that forms the southern border between Kurathene and Brekon, one that flows from the mountains of Galdos into Tyedu(seems like it could be an important ore route), and a very large multi-branch river through Drotid.

Do these have names?