Deepwall is an extensive cave system in the heart of Deepwall Wood. It is partially comprised of the ruins of the Dwarven city of Baldomhainn.

The labyrinthine cave network takes it's name from a feature in some of the deeper caves. These are walled off by huge blocks of carved stone, built by unknown ancient people that predated the dwarven city. Attempts to break through these walls have yielded no results, though the walls are scarred by dwarven mining in places.