| Category | Rivers |
| Continent | Brucrumus |
| Region | Cinazan, Ice Cap |
| Map | Eldorien River |
This broad river serves as a major trade artery for the civilizations along the coasts of the Core Sea, namely the Khazarkar Empire, Ithengee, and the Orchish Empire. It is also subject to its fair share of piracy and raiding. The river's headwaters originate from the Core Sea, flowing northward while flanked by the towering walls of the Feyl escarpment. The Eldorien terminates at a vast delta emptying into the Nautrek, measuring three miles wide where it meets this frigid sea.
The most noteworthy feature along the river is the dilapidated bridge of Svarmaer. All that endures of this engineering marvel are a dozen rock towers that once upheld a colossal bridge.