Located high in the Bufalos Mountains, it is the lone home of the Rooks of Bufalos. The Rookery is a massive natural canyon - roughly 500 metres deep - that stretches for several miles and is aligned approximately east-to-west. At the very bottom is a shallow, fast-moving river. The Rooks make their haphazard nests in the pockmarked cliff walls (usually inside one of the many shallow caves that speckle its surface), and discard their refuse in the canyon river, which flows east in the west and west in the east due to the canyon floor's gradual slope towards the centre.

The central feature of the Rookery is the Spire of Bufalos: a dizzyingly high pinnacle in the centre of the canyon range, literally surrounded by the canyon itself in a moat-like fashion. The Spire rises several hundred meters above the Rookery itself, and its roots go even further than the regular canyon floor, meaning that the river empties its waters into a black pit on both sides of the Spire. The eldest Rooks live in the Spire's intricate network of tunnels and caves, and there is always a flurry of activity around its peak.

Travelers are quick to describe the place as unsettling, and indeed a certain sorcerous aura seems to pervade the entire Rookery for reasons unknown. In addition, many areas of the stone canyon appear to exhibit extremely ordered, architectural features, though age and filth have obscured them almost beyond recognition. Certain caves, for instance, appear to have been hollowed out by sentient beings, and parts of the Spire seem decidedly artistic despite their delapidation. Many scholars see this as evidence of the Rooks' gradual decline from civilization, although it is equally possible that the Rookery was originally inhabited by others. A full exploration of the Rookery has never been documented, as the Rooks are very protective of their territory.