The ZittauâÂÂOybin/Jonsdorf railway, or ZittauâÂÂKurort Oybin/Kurort Jonsdorf narrow-gauge railway (German: Schmalspurbahn ZittauâÂÂKurort Oybin/Kurort Jonsdorf; ), is a narrow-gauge railway system employing steam locomotives and serving the mountain health-spa resorts (German: Kurorte) of Oybin and Jonsdorf in the Zittau Mountains in southeast Saxony (Germany). The track gauge is .