Ullen River

The Ullen River (known by locals as the Dark River), originates from the farthest south of the Footprint Lakes. The River flows west past Riverside Province into the jungle, then turns decidedly south parallel to the Henge of Denravi, and ends at the marshes of Tangle Root. It is called the Dark River not just for the darkness of the passage through the cliffs but also for a perceived darkness that shrouds this river. Old Joness, says it's cast by something unseen. note: The White Mantle call their gods (the Mursaat) The Unseen ones. This might be a connection since Saul D'Alessio stumbled upon their city in the jungle, so they do have a city and it is on the jungle.

Old Joness is the river guide who can give you passage through the Ullen river in the quest "Passage Through The Dark River".