Worlds Teeth Moutains
These are the tallest mountains in all the world. They reach great hights and rumor has it Titans and Dragons live on the very tallest of them. Orcs and goblins certainly live at the base of many, and this threat has pushed the northern peoples to the brink more then once. A number of assaults to drive them out have been attempted but never succeeded for long.
Trolls, Ogres and Giants also live in the mountains thankfully they have never come out in great numbers to threaten the peoples.