The Yamuna river is the right bank tributary of Ganga. It rises at Yamunatori glacier, situated at the Western slope of Banderpoonch.
After cutting a deep gorge at lesser Himalayas, it flows toward the Southwest and enters the Ganga plain at Paonta Sahib. After crossing Nagtibba range, it meets with its tributary Tons.
The Yamuna flows towards the South up to Agra and farther down towards the south-east direction till it joins the Ganga at Allahabad. Chambal, Sind, Betwa and Ken are its important tributaries and join it at its right bank.
The length of the Yamuna from its source up to Allahabad is 1300 km.