The Filyos River is a river in northern Turkey. The longest branch of the Filyos is formed near

Karabük Karabük is a town and the capital district of Karabük Province in the Black Sea Region, Black Sea region of Turkey. According to the 2009 census, population of the city is 108 167. The district covers an area of , and the town lies at an elevati ...

by several tributaries. It flows to the west through a deep canyon past Yenice. Just north of

Devrek Devrek is a town and district in Zonguldak Province in the Black Sea Region of Turkey. It was founded as Hamidiye, in the sanjak of Bolu. Devrek was incorporated into the Zonguldak Province on May 14, 1920. It is divided into five quarters, thr ...

, it is joined by major branches flowing from the south and southwest, and then flows north past Beycuma and

Çaycuma Çaycuma is a town and district of Zonguldak Province in the Black Sea region of Turkey. The mayor is Bülent Kantarcı ( CHP). The population of Çaycuma is 115,000, but the centre population is 21,300. Çaycuma is well known for yogurt Yogu ...

to reach the

Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Roma ...

. The mouth of the river is just east of the modern town of

Filyos Filyos (Hisarönü) is a belde town in Çaycuma district of Zonguldak Province, Turkey. It is a coastal town of the Black Sea Region at situated at the mouth of the Filyos River. It is to Çaycuma and to Zonguldak. In the ancient history the n ...

, in

Zonguldak Province Zonguldak Province ( tr, ) is a province along the western Black Sea coast region of Turkey. The province is 3.481 km in size and has a population of 619,703. Its adjacent provinces are Düzce to the southwest, Bolu to the south, Karabük t ...

. The

Yedigöller National Park The Yedigöller National Park ( tr, Yedigöller, "seven lakes") also known as Seven Lakes National Park is located in the northern part of Bolu Province in Turkey. The park is categorized under IUCN II and was established in 1965. The park is be ...

lies in the headwaters of the southern branch of the Filyos River. On 7 April 2012, a bridge over the river at Çaycuma collapsed and several people were killed. The Filyos River was known in Classical Greece as the Billaeus River.Dictionary of Greek and Roman Geography, illustrated by numerous engravings on wood. William Smith, LLD. London. Walton and Maberly, Upper Gower Street and Ivy Lane, Paternoster Row; John Murray, Albemarle Street. 1854.

References

Landforms of Zonguldak Province Rivers of Turkey {{Turkey-river-stub