| Category | Rivers |
| Continent | Elemantum |
| Region | Anubeth, Igas |
| Map | Sinnbjorg River |
Sinnbjorg is a meandering river that perpetually alters its course. It winds through the glacial expanse of Igas, navigating the spaces where ice and snow have yet to encroach. In the vicinity of Anubeth, the river dwindles to steam or is persistently redirected by the transforming terrain of the two elemental domains it traverses.
Sinnbjorg arises from the convergence of the lava and glacial flows emanating from Igas to the east and Anubeth to the west. While the river may be scalding hot in certain areas or completely frozen in others, the segments between these two extremes pose a treacherous hazard, clogged with icebergs and littered with the remains of those who perished in the Thrones War. The river ultimately terminates at the fog-obscured Jargauti bay.