Pages: 336-339

The article examines the issues connected with development of the urban area of Tyra - the largest Classical Ancient center in the Low Dniester area. The beginnings of this city dates back to a colonial settlement on the top of the promontory point in late 6th – early 5th cc. B.C. In 4th – 3rd cc. the area under urban construction reaches its maximum. In this connection, a new section of the defensive wall was built in 3rd c. B.C. The defensive system was redesigned in the Roman time. Nothing has been known so far about the southern limit of the urban area in the first centuries A.D.