Mountain Goblins were similar to normal Goblins, and could be mistaken with them, but Mountain Goblins had a thicker girth and smaller ears, and their skin tended to be more grayish than green. They normally lived in the mountainous regions of the northern Shadowlands, but some groups slipped past the Kaiu Wall and set up home in the Twilight Mountains and the Spine of the World Mountains. They were not so agressive and their numbers were small. When in or near their lairs they would fight fiercely.