The Granny Smith gold mine is located 720 kilometres east-north-east of Perth, and 23 kilometres south-west of Laverton, Western Australia. The mine commenced in 1989 and has produced over 6Moz of gold. The main ore source for the 3.5 Mt/a capacity SAG/ball mill/CIP plant is the high-grade Wallaby underground deposit with average grade of 6 g/t Au, with occasional toll treatment of ore from nearby operations. Granny Smith was one of the three Yilgarn South assets acquired from Barrick by Gold Fields in October 2013 for US$262 million. In 2018, Granny Smith produced 280koz of gold. Future production is expected to be around 275koz/a. The mill has a large surplus capacity and is run on a campaign basis. It could support an increase in production if further reserves can be identified.