Garden of Eden
Havilah is located according to Genesis 10:29-30 starting in Mesha going toward Sephar.   Mount Masius (Mesha) according to Strabo the Greek Geographer is in northern Mesopotamia near Nisiris. Sephar is the ancient city of Sippar near Babylon. The river which currently flows through this region is the Khabur.  Its origin is Mount Masius which is known as the Karaca Dag. The Karaca Dag also supplies water to the Tigris and Euphrates rivers as well as the Balikh river through karst springs which completes the complement of the Four Rivers of Eden. The town of Viransehir in the hills south of the Karaca dag was known as Telassar in the Byzantine era where  the Children of Eden were defeated by the Assyrians.