These are Nazibina, which is the modern Nisibin, the Nisibis of the Greeks; Amidi, which is Amida or Diarbekr; Haran, which retains its name unchanged; Sirki, which is the Greek Circesium, now Kerkesiyeh; Anat, now Anah, on an island in the Euphrates; and Sidikan, now Arban, on the Lower Khabour.

The other known towns of this region, whose exact position is more or less uncertain, are the following:--Tavnusir, which is perhaps Dunisir, near Mardin; Guzana, or Gozan, in the vicinity of Nisibin; Razappa, or Rezeph, probably not far from Harran; Tel Apni, about Orfah or Ras-el-Ain; Tabiti and Magarisi, on the Jerujer, or river of Nisibin; Katni and Beth-Khalupi, on the Lower Khabour; Tsupri and Nakarabani, on the Euphrates, between its junction with the Khabour and Allah; and Khuzirina, in the mountains near the source of the Tigris.

Besides these, the inscriptions contain a mention of some scores of towns wholly obscure, concerning which we cannot even determine whether they lay west or east of the Tigris.
Such are the chief geographical features of Assyria.

It remains to notice briefly the countries by which it was bordered.

To the east lay the mountain region of Zagros, inhabited principally, during the earlier times of the Empire, by the Zimri, and afterwards occupied by the Medes, and known as a portion of Media.