At a height of 4,370 metres, Kelingon is a mountain peak near Tezu formed by the local Midu Idus. It is believed to be the first highest mountain in the state and the 52nd highest mountain in the country (we are told!). Named so by the locals, Kelingon is located close to Anini in the Dibang Valley of Arunachal Pradesh and often goes unnoticed.