The Tythos River was a river located on the planet of Tython, and it flowed in proximity to the Tythos Ridge mountain range. Originating from a cascade of water close to the abandoned temple-cities known as Kaleth and Vur Tepe, the river meandered across a number of mountains and valleys, also flowing by the Jedi Temple prior to its arrival at the Tythonian Gnarls; in this location, it divided into numerous smaller streams that subsequently converged again at the area's most distant point.