This ruined fortress lies high above the forests of South Trollshaws and may only be reached by a narrow path from the south-west. These days the ruins are occupied by a dense population of fierce cave-claws that have built burrows within.
-  The True Thieves
These deeds can be advanced by visiting Ost Dúrgonn:
These creatures are encountered at this location:
- Ost Dúrgonn was constructed by the ancient Kingdom of Arnor to stand guard over the main crossing into the Trollshaws and thus deny it to invaders from the East -- however, the greater threat proved to be from the North, and this fortress fell into misuse and eventual ruin as wars raged elsewhere. — Deed