| Category | Rivers |
| Continent | Brucrumus |
| Region | Drarthiel |
| Map | Ufthag |
The Hair of Sivadex flows through the Drarthiel Region. It derives its name from a notorious blood fiend known as Sivadex - an enigmatic slayer of demons with ivory locks who once terrorized the denizens of Belogrell and claimed the river as its domain.
The Hair of Sivadex is a challenging river to navigate. Its milky, mineral-rich waters obscure shallows, submerged wreckage, and other aquatic hazards. The river's headwaters originate within the city of Belogrell, where numerous streams, primarily fed by seepage from the nearby Dargirth River, flow through the municipality for three miles before turning northeast for twenty additional miles and emptying into the Green Nebulous.
In the Demon Spawn War (89 GE - 269 GE), during the reign of Athroond, the Hair of Sivadexs was dredged and deepened by enslaved earth and water elementals, enabling large vessels to navigate the full length of the river up to Belogrell.