Altgrimmr — a dwarven stronghold in the Western Threshold Range mountains a dozen miles northeast of Thundertree and ten miles northwest from the city of Threshold. In centuries past, there was warfare between Altgrimmr and the Duergar city of Barakuir — over a hundred miles of winding tunnels connected the latter with the surface fortress of Altgrimmr. Barakuir lies eight-five miles south of Altgrimmr, and is a surface stronghold.