The Gnollwatch Mountains are a medium small mountain range that runs east to west through Dambrath for approximately 700 miles. The range eventually declines and becomes the Hills of Dead Kings in the east. The Gnollwatch are not impressive peaks because of the Muaraghal Mountains to the west but have several moderate peaks over 9000 feet and Mount Hazail is the tallest peak at 11,500 feet.  The mountains are not particularly sharp, as the peaks have been worn down with the passage of time.
The mountains also have rich deposits of silver which are actively mined every year.
True to their name, the mountains are home to numerous tribes of gnolls living there. Some tribes are belligerent but many maintain trade relations with Dambrath. One leader, Grubash Blacksnout has disciplined the tribes into cohesive units maintaining territories with organized hunts.
There are a small number of hill giants on the high peaks and they infrequently leave the mountains for a taste of horse flesh. There is also a small family of storm giants living near the highest peaks that keeps to itself. The patriarch is Abinor Lashingwind, and he uses considerable talent to warn off intruders. 
Deep beneath the mountains is the drow city of T'lindhet. The drow have friendly trade relationship with Dambrath and there are several roads that lead to drow city. The main road leads out of the mountains south to Herath.