Konkelhaut was an old duergar kingdom located in what is known today as Blackstone Mountain. The inactive volcano were rich in precious metals and gems, spawning a a rich and influential state of dark dwarves that monopolized large parts of the gem trade in the empires of old.
At some point, the duergar kingdom interacted with the greedy Dao genies of the plane of elemental earth, spawning the downfall of the proud realm. Most of the duergar were enslaved and worked to horrible ends by their genie overlords, who became known as the Dorkanni.
When the genasi known as the "Conflux" traced the Dorkanni forces, the kingdom of Konkelhaut was finally freed from the Dao, but due to the extent of damage to the old realm, it was impossible to restore it to its former glory, leaving only crumbling ruins behind in the aftermath of the great war.