This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
Earlier maps show a river flowing from Lake Abassi south into Darrowmere Lake called the Greenrush River, which may be the same river as this but Quel'Thalas was attached too far east to show this in WoW. One explanation to this problem may be that Thondroril may be Thalassian for "Greenrush", although it is even possible that the Thondroril River and the Greenrush River are two different and independent rivers indicating that the Greenrush River still has not been implemented in the game.
During the Second War, Turalyon and Alleria Windrunner led their forces aboard ships to Quel'Thalas. They could not enter the elven land, however, so they disembarked near Stratholme. Although not named in the book, the only river in the proximity of Stratholme is Thondroril. As such, it could be speculated that Thondroril is also present in Quel'Thalas.
Patch 4.0.3a (2010-11-23): Flight master moved across the bridge to the Eastern Plaguelands.