On maps from the Warcraft III manual, an unnamed river does flow from Lake Abasi into Darrowmere Lake. In World of Warcraft, however, the river is missing, probably due to scaling issues. Also, in World of Warcraft, Zul'Aman is located much farther from Darrowmere Lake.
In the next few weeks, your wiki will be migrated to a Fandom.com domain. Learn more here.