The Chemins de fer du Jura, abbreviated to CJ, is a railway company in the canton of Jura in northwestern Switzerland. It was formed in 1944 from the merger of four independent companies connecting Porrentruy to Bonfol, Saignelégier to La Chaux-de-Fonds, Glovelier to Saignelégier and Tavannes to Tramelan and Le Noirmont.[2] The lines extend for a total of 84.8 kilometres (52.7 mi) of which just over 73 kilometres (45 mi) is metre gauge. The 11 kilometres (6.8 mi) line from Porrentruy to Bonfol is standard gauge. The company also operates local bus services in the area.