The Old Voss Line (Norwegian: Gamle Vossebanen) is a heritage railway between Garnes and Midttun near Bergen, Norway. Originally constructed as a 1,067 mm (3 ft 6 in) narrow gauge line, it formed part of the Bergen to Voss railway opened in 1883. Following the decision to complete the railway to Oslo in 1,435 mm (4 ft 8+1⁄2 in) standard gauge, the line was upgraded in 1904. Electrified in 1954, it continued to serve as part of the Bergen to Oslo main line until the Arnanipa Tunnel and the 7.5 km (4.7 mi) Ulriken Tunnel, which opened in 1964, resulted in the closure of the line for passenger traffic. The line is still open for freight traffic.