Site: Ferhatlı
Country: Turkey
Region: The Marchlands, Northeastern Turkey
Location : 41° 03’ N, 42° 00’ E
Cultures: Georgian
Description:

Ferhatlı [Georg: Akhiz or Aḫiza] is a very large garrison fortress, primarily of Georgian construction (4th – 13th c), which was restored in the 5th c. by King Vakhtang I Gorgasal and became the seat of a bishop.  Its impressive circuit wall and battlements guarded (along with Ardanuç) the road from Artvin to Ardahan.

Ref: Marchlands 2, pp. 170-171.

Additional photos are in the reference above.

Alternate Site Names and Spellings: Akhiz, Aḫiza, ახიზა, Ferhatli