| Category | Strongholds |
| Continent | Brucrumus |
| Region | Ice Cap |
| Owner | Brisingr |
| Built | 6 Hollow 1146 HE |
| Map | Aettein |
Izdurgrak is sited across a mountain pass leading north into the glacial vales of Khalas. This pass, the Khazan-Fel, is the best route for entering the vale.
In Malad-Mîn's conflicts with the Gadstill Dynasty, Izdurgrak was besieged many times, falling six, twice where all defenders were killed. After the fall of Gadstill, operations shifted from defending against giants to defending against undead. Fortifications were changed to deal with restless spirits and the lifeless that came out in 1537 HE when an eldritch giant lich named Erthjorn and his undead legions fell against the walls of Izdurgrak.
Izdurgrak is linked to Khalas by sixteen underground passages. Each of these are covered by heavily fortified keeps that can be flooded with chilling glacial water if taken by invaders.