It rises on the southwestern slopes of Mount Gurage near , flowing south along the western side of the Great Rift Valley, to empty into Lake Abaya at . It is the longest river flowing into Lake Abaya and also the one with the highest discharge.
This river begins on the southwestern slopes of Mount Gurage near , flows southward along the western edge of the Great Rift Valley, and empties into Lake Abaya at . It stands out as the main river flowing into Lake Abaya and also has the highest water flow rate.