| Category | Glaciers |
| Continent | Brucrumus |
| Region | Grashakh |
| Map | Mirtheon |
Adrglof is an unnatural glacier of the Ugradrath mountain range. A sacred site for followers of Thyrm, at its center lies a fallen general of the Creation War. Serving on the side of the primordials, this icy champion was a Thrallrir named Beir Thonn.
Very powerful, capable of manipulating the energy around him, Beir Thonn perished in the Demon Spawn War ( 89 GE - 269 GE ) . In a final act of defiance upon his demise, he warped the energy fields surrounding him. The outcome was a rapidly forming glacier that filled the valley. It encased Beir Thonn and his demon assassins, shattering them with the swiftly developing glacier. The substance of Fimbulwinter, the ice of Adrglof, is as unyielding as bronze and highly resistant to fire.