The Rockjaw tribe is a tribe of troggs found residing in Coldridge Valley and Gol'Bolar Quarry in Dun Morogh. They are light colored, mostly comprised of blues, whites, and light purples—possibly an adaptation to Dun Morogh's harsh, wintry climate.
The dwarves' insatiable digging at the Gol'Bolar Quarry unleashed this menacing tribe from their subterranean den. Now, the massing trogg invasion looms over the lands of Ironforge, keeping their forces busy at quelling it.
The Cataclysm tore open deep caves beneath Frostmane Hold and as such allowed the Rockjaw troggs to drive out the local ice trolls.
In the RPG
This section contains information from the Warcraft RPG which is considered non-canon.
Gnomeregan was once home to the Ironforge gnomes, but vile Rockjaw troggs devastated the populace and drove the survivors to Ironforge. The troggs use the city as a base to stage attacks against Ironforge patrols, merchants and other travelers.