[1] Karara Mining Limited holds a 49-year lease on the rail corridor from the Public Transport Authority, which began in August 2012.

[2] It branches off the Perenjori–Mullewa railway line four kilometres (2.5 mi) north of Morawa at Tilley Junction.

[4] The Railway (Tilley to Karara) Bill 2010 was introduced to the Parliament of Western Australia in May 2010[5] and passed in July 2010.

[12][13] In 2011, QR National (since renamed Aurizon) was awarded a 10-year contract for operating all trains to and from the Karara mine.

The contract was worth approximately $900 million and involved QR National expanding its Narngulu maintenance yard.