| Category | Lakes |
| Continent | Brucrumus |
| Region | Unaraggumak |
| Map | Khelan |
Arkan-Ragûm is a large lake of northern Khelan. It fed is by a Toadoolp Twist and a tributary coming off the river Damazandal. The lake drains south by way of the Houtrius River.
In the Lith-Crillion Era, the kuo-toan of the Âkhi Empire came through the area's Toadoolp Twist. Unwelcomed, they were driven south by the Munarkûn, ending up in the subterranean wetlands of Wyzbrack.