State : Arunachal Pradeesh, the north eastern state of India. Best time to Travel : October to April Locate : This sanctuary is located near Roing the headquarters of the Lower Dibang Valley District. Know Mehao Wildlife Sanctuary in Arunachal Pradesh Mehao Wildlife Sanctuary in Arunachal Pradesh covers an area of 281 sq.km. near the Roing, in the Lower Dibang valley District. The surrounding of the Mehao Wildlife Sanctuary is domesticated by Idu Mishimis and Adis. The sanctuary is rich with varied flora & fauna.