Razorfen Downs

Razorfen Downs are the ancestral burial grounds of the quilboar, nestled amid huge brambles in the Barrens, on the east side of the far southern edge. The Scourge have taken over much of the downs, and infest the burial grounds with the reawakened dead.

History
From Blizzard's Official World Dungeons site:
 * Crafted from the same mighty vines as Razorfen Kraul, Razorfen Downs is the traditional capital city of the quilboar race. The sprawling, thorn-ridden labyrinth houses a veritable army of loyal quilboar as well as their high priests - the Death's Head tribe. Recently, however, a looming shadow has fallen over the crude den. Agents of the undead Scourge - led by the lich, Amnennar the Coldbringer - have taken control over the quilboar race and turned the maze of thorns into a bastion of undead might. Now the quilboar fight a desperate battle to reclaim their beloved city before Amnennar spreads his control across the Barrens.