The Boulderslide are a group of kobolds found at Boulderslide Ravine.
They're frantically mining a rare crystal called Resonite. The crystals have a trace of earthen magic.
Deep inside Boulderslide Cavern, the Goggers have dug deep uncovering a Resonite Cask, which houses a slumbering earthen by the name of Goggeroc, who is killed by Horde adventurers at the best of Mor'rogal.
This section concerns content exclusive to Cataclysm.
After the sudden disappearence of Goggeroc, the group was renamed as Boulderslide. However, even without the presence of the earthen, these kobolds still guard the Resonite Crystals with their lives.
Subjugator Devo has submitted several of these kobolds under his leadership as an answer to the cooperation between the Alliance and the Grimtotem tribe. After a quest chain, the subdued kobolds launch a massive assault against the Alliance-Grimtotem forces and ultimately win. 
- Before World of Warcraft: Cataclysm, this group of Kobolds were called the Goggers.
- The name "Goggeroc" is very similar to "Gogger", so some connection may exist between them. This is further reinforced when he disappears in Cataclysm, and the Kobolds' group have its name changed.