On a slope cut by the old road in the middle of Tsovinar and Artsvanist villages in Gegharkunik Region, is the Urartian city of Teyseba, (currently Odzaberd or "Serpent Castle") established by Rusa I (approx 735-713 BC), the best-preserved Urartian fortification in the Sevan Basin. The site is best reached from the  Artsvanist. Cut into a low bluff beneath the road on the Lake Sevan side is a well-used cuneiform engraving of Rusa I relating his triumph of 23 countries. With equivalent presumption, the current engineers of the Arpa-Sevan tunnel picked the hill of Teyseba to be the point where the tunnel debouches on the lake.