The Fortescue Railway, owned and operated by Fortescue Metals Group (FMG), is a private rail network in the Pilbara region of Western Australia built to carry iron ore. It opened in 2008. When it was completed it was the heaviest haul railway in the world, designed for 40 tonnes axleloads, 2.5 to 5 tonnes heavier than the other Pilbara iron ore rail systems. On 4 November 2014, FMG Rail commenced trialling 42 tonnes axle loads.