Dwarfhold

Dwarvern civilization revolves around the inhabitation of well-protected fortress city-states known as Holds. These mountain bound settlements serve not just as a home for the dwarfs that inhabit them but as an extension of their family and clan system.
The majority of Dwarven holds were built long ago and are today abandoned or otherwise lost beneath the mountains.
Horrorholds 
Mort Karuz is an Alabastian dwarf hold memory holed from the desets of Anraska
The practice of memory holing is when an event is forgotten by the collective consciousness of society and from all known records typically due to collective trauma which is so severe it rips a hole in the psychic reality of perception