It is a small Phrygian fortress about 1.5 km north of İnlice locality of Ovacık village in Kütahya. Its central location on the mountain range (i. e. the "Long Range" of Haspels) that divides the mountainous Phrygia in half was very strategic for communicating with other fortresses by sign. Even the Midas Kale is visible from Deliktaş Kale.
A simple oval niche is located on the west side of the steps at the south entrance of the fort. On the back wall of the niche, there was a mother goddess figure which has been completely destroyed by treasure hunters. Today only its traces on the wall are visible.
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Literature:
Berndt-Ersöz, S. 2006. Phrygian Rock–Cut Shrines. Structure, Function and Cult Practice, Leiden.
Haspels, C. H. E. 1971. The Highlands of Phrygia. Sites and Monuments, Princeton.
Tüfekçi-Sivas, T. & Sivas, H. 2009. Frig Vadileri (Frigler'den Türk Dönemine Uzanan Miras), T. C. Eskişehir Valiliği, Eskişehir.
Tüfekçi-Sivas, T. 2012. 'Phrygian Valleys and Sacred Yazılıkaya-MidasCity', in Phrygians, In the Land of Midas, In the Shadow of Monuments, ed. by T. Tüfekçi-Sivas & H. Sivas, İstanbul.
Image sources:
C. H. E. Haspels, 1971
T. Tüfekçi-Sivas & H. Sivas, 2009
H. Sivas, 2012