Castabala (Greek: Καστάβαλα), also known as Hieropolis and Hierapolis (Greek: Ίεράπολις) was a city in Cilicia (modern southern Turkey), near the Ceyhan River (ancient Pyramus).
The Turkish town of Kırmıtlı, in the Osmaniye district of Osmaniye Province, is about 3 miles wsw of the ancient city.
The ruins were first identified from inscriptions in March 1890 by the British explorer J. Theodore Bent.[1]