During the medieval period one of the most important guardians of the coastal road connecting Trabzon to Samsun was the large Byzantine garrison fort located about 3 kilometers east of modern town of Eynesil.

[3] The impressive circuit walls and defenses create two separate baileys with the remains of numerous rooms.

The site briefly served as a Russian military depot and lighthouse (1877–78) during the Russo-Turkish War.

In December 1461 Eynesil became part of the Ottoman Empire, and the first Turkish people to move into the area were the Chepni, followers of Haji Bektash Veli and therefore responsible for the strength of the Alevi community in Eynesil.

Note: follow resimler in Turkish language websites for photographs of the area: