It is headquartered at Peren at 1445.40 mts. above sea level. The altitude of the District varies from 800 mts. to 2500 mts. above the sea level. The principal rivers and important rivulets that flows through Peren District includes Tepuiki, Mbeiki (Barak), Ntanki, Mungleu, Tesanki, Nguiki, Nkwareu, Techauki, Ngungreu,Tahaiki and Duilumreu (Tributary of Tepuiki). Mt. Paona is the highest mountain peak in the district and third highest in Nagaland is 2500 mts high. Tening, Jalukie and Peren are the major towns of the district.