Ong River
Ong River is a tributary of Mahanadi river. It flows across Odisha and joins Mahanadi upstream of Sonepur where the Tel merges. The river rises at an elevation of and runs before it meets the Mahanadi. It drains an area of about.
Nearby rivers to Ong river: Tel Nadi , Gorkha Nadi, Subarnarekha River/Swarnarekha River, Godavari, Manairu Vagu.