The origins of this wide rushing river are unknown. The Elves know where it comes out of the ground, but that's about it. A deep crater in the woods serves as the mouth of the big river, with water just constantly bubbling upward and defying gravity before beginning its descent towards the Cross Roads' Karben Lake.
This river is thin enough to jump across in some sections, and so wide and deep that you need a boat to cross at others. The river is very magical, and this is no fault of the Elves. It's always been this way, keeping its form perfectly and always remaining the same deepness. It seems as though the water will never run out. It passes directly through Glauxilian.