It is situated in the Sivas-Samsun chausee, altitude 2280 ft., at the mouth of a rocky glen which opens out to the broad valley of the Tozanli Su, a tributary of the Yeshil Irmak.
Sinope, Kastamuni and Samsun were surrendered by the prince of Isfendiar, and the conquest of Asia Minor seemed assured.
The Turkish dominions in Asia Minor were extended, Amasia, Samsun and Janik being captured, and an insurrection of dervishes was quelled.
Its importance is largely due to its situation on the great trade-route from Kaisarieh (Caesarea) by Yuzgat and Marzivan to Samsun on the Black Sea.
Part of the kingdom was now annexed to the Roman Empire, being united with Bithynia in a double province called "Pontus and Bithynia": this part included (possibly from the first, but certainly from about 40 B.C. onwards) only the seaboard between Heracleia (Eregli) and Amisus (Samsun), the ora Pontica.