* Kuskoy, Turkey? This is a town near the ancient city of Ephesus, which has many well-preserved ruins, including the Temple of Artemis, the Library of Celsus, and the Great Theatre. Ephesus itself sits on a plain close to the Cayster River and the Aegean Sea.
* Another location? There might be other places called "kusk" or similar, but I need more context to understand.
Once you tell me which "ancient kusk" you are referring to, I can give you a more accurate answer about its physical features.