| Location: It is situated at 330 m between Kilictepe and Orentepe in the Kozlu District of Zonguldak. |
| Geography and Environment: Dropping into 2; 6 and 14 m descents; its overall length is 89 m. As it ends up with a depression; it is not possible to go deeper. The area is a contact zone of the Devonian karstic dolomitic limestones and the Cretaceous flysch. The runoff surfacially flowing on the flysch during rainy periods turns into groundwater flow near the entrance of the sinkhole (10 m). However; no activity was observed in the sinkhole in regard to this water. |
| Destruction Details: |
