Gold is mined in all Australian states and the Northern Territory. Western Australia accounts for almost 69% of Australia's gold production, followed by New South Wales (12%), Queensland (6%) and Northern Territory (5%). Gold is the primary output of about 70 operations in Australia with many drawing resources from two or more deposits. Several mines also produce gold as a by-product of processing other commodities such as in polymetallic base metal deposits at Rosebery (Tasmania) and Olympic Dam and Prominent Hill (South Australia).