The Yarma River is a river that begins underground within the Khurazar Mountains before flowing west into the Gulf of Aserdus. For most of its surface route, the river runs through a region of mostly arid grasslands, a transitional zone between the desert of the Sangora Desolation and the expansive tropical grasslands and forests of Brightmarch. Though the river runs quickly when it leaves the mountains, for much of its route it widens and slows significantly.
The Kharakunite city of Skygate was built at the point where the Yarma River reaches the surface, and the city-state of Yarma is located where the river meets the sea.