"THOR", a 2-8-0 steam locomotive, is pulling a freight train on the Uppsala-Lenna J?rnv?g (ULJ) (Uppsala-Lenna Railway) narrow-gauge heritage railroad. The gauge is 891 mm (2 ft 11 3⁄32 in), which is unique to Sweden. This locomotive was originally built in 1909 in Falun for the Byvalla–L?ngshyttans J?rnv?g.