From Skyrim Wiki
Cidhna Mine is a silver mine and also considered to be the most secure prison in all of Skyrim. It is located under the city of Markarth. Trying to enter the mine will result in being told that you may not.
NPCs[edit | edit source]
- Urzoga gra-Shugurz, guard
- Borkul the Beast, his bodyguard
- Grisvar the Unlucky