The Blackwolf River is a small river running through Windshear Crag from the Cragpool Lake in the Stonetalon Mountains. It was originally heavily polluted due to the deforestation operations that the Venture Company did in the valley. By the time of the Cataclysm the majority of the Venture Co. left the area though they still maintained little presence in the valley. It also seems the river has been cleansed in some degree.
In the RPG
With the aid of erosion from the Blackwolf River, the Stonetalon Mountains have expanded into a vast network of canyons and cliff openings that invites adventurers and beasts alike to explore the virgin lands.