The rock inscription was written on the naturally smooth surface of a rock at the location known as Toptepesi near Hisarcik village, about 10 km south of the city of Kayseri. Most of the two-line hieroglyphic Luwian inscription was not in good shape. It is probably about an offering to Mount Harhara (Mt. Erciyes). Unfortunately sometime after year 2000 the rock surface has been intentionally scraped and the inscription was completely destroyed.
Another inscription found in Hisarcık is now in Ancient Oriental Museum in Istanbul. The 60 cm by 60 cm basalt block has a 3 line hieroglyphic Luwian inscription on one face. Inscription mentions offering of gazelles to Mount Harhara. The name Kurti is mentioned at the end of the text may be the same person as mentioned in Bahçeköy text. If so, it should date to the end of 8th century BCE.
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Ertuğrul Anıl, Bora Bilgin, 2011
J.David Hawkins, Corpus of Hieroglyphic Luwian Inscriptions. 2000.