Filyos (Hisarönü) is a town (belde) in the Çaycuma District, Zonguldak Province, Turkey.Belde Belediyesi , Turkey Civil Administration Departments Inventory. Retrieved 1 March 2023. Its population is 4,847 (2022). It is a coastal town of the Black Sea Region, situated at the mouth of the Filyos River. It is to Çaycuma and to Zonguldak. In the ancient history the name of the town was Tieion referring to the founder of the town.Mayor’s page The settlement was declared a seat of township in 1954. The main economic activity of the town is firebrick industry. Tourism is also promising.
See also Filyos Natural-gas Processing Plant
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