"Biliran Amul" is 35 thousand years old.
The academic staff member of the Department of Archeology of the University of Mazandaran said: The hot area of the Beliran Amal River is 35 thousand years old, the Hutto, Belt and El Tepe caves are about 8 to 14 thousand years old, and the Komishan Banka cave is one of the oldest places of human settlement with a history of 8 to 12 thousand years.