It then enters a wide valley and meets two tributaries near Jhala. The river continues to flow downwards to Uttarkashi and then through Dharasu, Chinyalisaur, and the old town of Tehri. From Tehri, the river reaches Devprayag via the Himalayas. At Devprayag, the Bhagirathi River converges with the Alaknanda River and travels onward as the Ganges River. The Bhagirathi River is mythologically known to be the source stream for the Ganges River. In hydrology, the Alaknanda is the source stream for the Ganges River due to its length and discharge. The Alaknanda River, including its tributaries, is and the Bhagirathi River, including its tributaries, is . Tributaries The Bhagirathi River is joined by several tributaries; these are, in order from the source: Kedar Ganga at Gangotri (elevation ), Jadh Ganga at Bhaironghati (elevation ), Kakora Gad and Jalandhari Gad near Harsil (elevation ), Siyan Gad near Jhala (elevation ), Asi Ganga near Uttarkashi (elevation ), Bhilangna River near Old Tehri (elevation ). The Bhilangna itself rises at the foot of the Khatling Glacier (elevation ) approximately south of Gaumukh. The controversial Tehri dam lies at the confluence of the Bhagirathi River and the Bhilangna, at , near Tehri. Chaukhamba I is the highest point of the Bhagirathi basin. Dams There are 18 dams along the Bhagirathi River , either in operation, under construction or planned. These are, in order from the source: Notes References available on microfilm External links Rivers of Uttarakhand Rivers of West Bengal International rivers of Asia Sacred rivers Rigvedic rivers Bhagirathi Ganges basin Rivers of India