[4] The Dibang River originates in the mountains of Arunachal Pradesh and flows through the length of the valley which is named after it.

Some of the major rivers of Dibang Valley District are: Ahui, Emra, Mathun, Dri, Tangon, Ithun, and Ange.

The story conveys the names and location of the Cheethu-Huluni or the twelve rivers that the Mishmi (Idu) people came over in the region and settled around.

[13] The Mishmi(Idu) people here believes that Rukmini-Chief Consort of Lord Krishna belonged to their tribe.

There is a legend that Lord Krishna asked the Mishmi people to cut their hair as a form of punishment for not allowing him to marry Rukmini.

[15] Languages spoken include Idu Mishmi with approximately 25,000 speakers, written in both Latin and Devanagric scripts.