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: Before they were merged into one single mine, the "New Celebration Gold Mine" was much larger than the "Jubilee Gold Mine"