Kerboldor

The city of Kerboldor (kare-bole-door) is the western-most city of the Valen Maru mountains in northern Eregoth. Ruled by Clan Oli (oh-lee), an unusually Dwarven clan as opposed to the main Goliath demographic, this city is known for it's extremely valuable minerals, talented miners who extract those minerals, and skilled warriors. In fact, Clan Oli jewels are known throughout Eregoth as the finest in the nation.
Kerboldor is more Eregothian in culture as opposed to Goliath. In fact, this is seen as Clan Oli referring to themselves as a House more often than a Clan, which is unusual for Valen Maru culture. 
This entire settlement is built underground, inside of a mountain.