Premise: The South Kalgoorlie Gold Mine is a gold mine located south-west of Kalgoorlie, Western Australia. The mine is sometimes also referred to as "South Kal Mines - New Celebration", being a merger of the former "New Celebration Gold Mine" and the "Jubilee Gold Mine", which were combined in 2002.
Hypothesis: Because it was formed through a merger of two different mines, The South Kalgoorlie Gold Mine is Western Australia's largest gold mine.