Byssa (river)
The Byssa () is a river in Selemdzhinsky District, Amur Oblast, Russia. It is the third longest tributary of the Selemdzha, with a length of  and with  the third in drainage basin area, after the Orlovka. The name of the river originated in the Evenki language. The river flows across a largely uninhabited area except for Byssa and Fevralsk villages in the area of its mouth. South of Fevralsk the river is crossed by the Far Eastern Railway line. Course
The Byssa is a left tributary of the Selemdzha. It has its origin at an elevation of about  in the northwestern slopes of the Turan Range. The river flows in a roughly southwestern direction with rapids and a winding channel in its upper reaches. After leaving the mountainous area it enters a wide swampy valley where it meanders slowly all along its middle and lower course. Finally it meets the left bank of the Selemdzha  from its mouth in the Zeya. The main tributaries of the Byssa are the  long Iga from the left and the Sinnikan from the right. There are hot springs in the middle basin of the river where the water reaches a temperature of . See also
List of rivers of Russia

References

External links 
река Бысса 2016
Быссинский источник - Amurvisit.ru

Rivers of Amur Oblast
Drainage basins of the Sea of Okhotsk