Boulderslide Cavern is a mine found in Boulderslide Ravine worked by Gogger kobolds.
They're frantically mining a rare crystal called Resonite. The crystals have a trace of earthen magic.
Deep inside the mine, the Goggers have dug deep uncovering a Resonite Cask, which houses a slumbering earthen by the name of Goggeroc.
Inside Boulderslide Cavern
Resonite Cask containing Goggeroc.