The ancient Pyxites River (Grk: Πυξίτης) is a river that runs through Matsuka (Trk: Macka). It springs from the mountains of Pontus - Zigana, KulatDag-Karakapan and HorozDag, and empties into the Black Sea east of Trebizond. Its length reaches 80km. It takes shape from smaller rivers of Moulaka, Pritani, Panagia Sumela and Galiaina. The river is often mentioned in Pontic songs of Macka and the Trebizond region in general. It is mentioned in the verse of the legendary folk song titled ‘Trikhas to Yefiri'.
Another named used to describe the Pyxites River is Dafnopotamos (Grk: Δαφνοπόταμος). Dafnounta (Grk: Δαφνούντα) which was also known as Dafnous or Dafnai, was the name of the eastern commercial harbour and quarter of Trebizond. It's believed it got its name as a result of the large number of dafnous (laurels - a type of tree) in the area. The Emperor Adrianos (117-138) turned Dafnounta into a harbour, while prior to this it was a bight (bay or gulf). Dafnounta was the home of the Eksartisis (naval station) of the Grand Comnenians. It was also used by the merchant ships of the Genoese and Venetians as well as other countries to anchor their ships. To the Italians it was "Dia Funda" - "de portu sive plazia Trapesonde."
Τρίχας το Γεφύρι (Trikhas to Yefiri)
Trichas Υefiri is a popular and very famous Pontic story about a bridge located on the ancient Pyxites River east of Trebizond. The bridge is on the left side of the main road that goes from Trabzon to Erzeroum. It is 18 km from Trabzon near Mikhirtzi-Yesiroglou. Today the bridge is not in use. Some scholars believe the bridge is located on the Sumela river while others have it on the Matsuka river. The tune bears many similarities with the Greek tune Tis Artas to Yefyri (the bridge of Arta). In the Pontic version however the master-builder refuses to hand over his father or his mother and agrees to sacrifice his kali (girlfriend) because he says he can find another, while in Tis Artas to Gefiri the wife of the master builder is sacrificed.
* The Encyclopaedia of Pontian Hellenism. Malliaris Paedia
* The Byzantine Monuments and Topography of the Pontos. A Bryer. D.Winfield.
* Της Τρίχας το Γεφύρι