Wikia

Before the Cataclysm, the Bitter Reaches^{[73, 21]} was the name given to the northeastern region of Azshara. It was densely populated by hippogryphs, oozes and chimaerae, except along the northern edge where elite mountain giants displaced most of the wildlife. Some herbs such as Mountain Silversage grew here, though sparsely.

Since the upheaval brought about with Deathwing's reemergence, the land that was once the Bitter Reaches has split in half. Much of the part connected to the mainland is now called Sable Ridge and has been taken by the Black dragonflight, while the part split off and a small part of the mainland remains the Bitter Reaches.