Lost Dwarven Fortress

Description
 Betweem rocky hills hides the entrance to an underground citadel, built centuries ago by dwarves. When its creators fled the Stolen Lands, they sealed its gate for good. 

You unlock this location during Harrim's companion quest Unbreakable Metal.

NPCs

 * Jarmuld Skjegge
 * Offeld Skjegge
 * Rudrin Skjegge

Creatures

 * Adamantine Golem x7

Loot

 * Cold Iron Dwarven Waraxe +3 - on the body of a dead dwarf (southwestern part of the fortress' wall) during the Unbreakable Metal quest
 * Flaming Burst Adamantine Dwarven Urgrosh +3