The Wirsitzer Kreisbahn (Polish: Wyrzyskie Koleje Powiatowe) was a narrow-gauge railway in the Wirsitz district in what was then the Prussian province of Posen (from 1921 Powiat Wyrzysk in the Posen Voivodeship) with a gauge of 600 mm. (...) Since 2008, the remaining remains of the railway have been under monument protection. The local association Towarzystwo Wyrzyska Kolejka Powiatowa in Białośliwie has been taking care of the maintenance of the vehicles and the operational readiness of the route since 2001. However, he only organizes train journeys on request. Since April 1, 2009, the railway facility has belonged to the Powiat Pilski (Piła district), which took it over from the PKP. The Białośliwie (Weißenhöhe)–Kozik Młyn (Koczik Mill) section has been in operation since 2011. Px38-805 steam locomotive is in service.
The section north of the S10 Niezychowo-Czajcze (Heinrichsfelde)-Wissek has been open to traffic again since May 2013. Every year at the beginning of June there is a big narrow-gauge meeting with several guest locomotives. Source: Wikipedia