The Mount Newman railway, owned and operated by BHP Billiton, is a private rail network in the Pilbara region of Western Australia for the purpose of carrying iron ore. It is one of two railway lines the group operates in the Pilbara, the other being the Goldsworthy railway.

Mount Newman Railway is a mining company located in the Pilbara region of Western Australia. It operates the world's longest private railway and is owned by BHP Billiton. The railway is used to transport iron ore from the company's mines in the region to its port at Port Hedland. It is one of the most important infrastructure assets in Australia and is a major contributor to the economy of the region.

The Mount Newman Railway was constructed in 1969 and is approximately 730km long. It is a single track line with two passing loops and is used for both freight and passenger services. The railway is operated by a dedicated team of engineers and technicians who are responsible for the maintenance of the track and the locomotives. The railway is well known for its advanced signalling system which is used to control the movement of trains.

The railway is equipped with a number of features that make it one of the most efficient railway systems in the world. It has an automated warning system which alerts the driver of any potential danger on the track and also has a number of other safety features such as emergency brakes and automatic speed limiters.

The railway is used to transport iron ore from the company's mines to its port at Port Hedland. The ore is then shipped to customers around the world. The railway is also used to transport other goods such as fuel, fertiliser and other materials.

The Mount Newman Railway is an important asset for the region and the economy of Western Australia. It provides employment for many people in the region and contributes to the development of the local economy. The railway is also important for the environment as it helps to reduce the amount of carbon emissions produced by road transport.