In the lower right of this image is the entrance to a sloping 555 ft. [170 m.] tunnel that might lead down to a cistern/spring—but the purpose of the tunnel is uncertain.
Above and to the left of this entrance is the longest Greek inscription found in Turkey (partially visible in enlarged versions of this image). The inscription describes how Antiochus built the sanctuary at Arsameia in honor of his father Mithridates I who’s stela is positioned just above and to the left of this rock scarp.
For a detail view of the inscription click here.
Arsameia was the capital of the kingdom of Commagene. It was founded in the first century B.C.