The economic giant, on Newmont’s figures
Cadia Valley Operations sits in the hills near Orange, in the same gold country where Australia’s first payable gold was found in 1851. It is owned entirely by Newmont Corporation, which took full control when it acquired Newcrest Mining in November 2023, and Newmont describes it as one of the largest gold and copper deposits in the world. The mine produces gold dore bars and gold-rich copper concentrate, and it is the largest private employer in this part of the state.
The scale shows up in the company’s community reporting. In its 2025 figures, published in May 2026, Newmont says Cadia invested $5.04 million in community projects across the Blayney, Cabonne and Orange local government areas, and puts the mine’s total gross value to the Central West economy that year at $1.2 billion. Those are the company’s own numbers, and the $1.2 billion in particular is best read as Newmont’s estimate of its own economic footprint rather than an independently audited figure. Read that way, the direction is not in doubt: a mine of 1,800 workers, among the world’s largest, is the anchor of the district economy.
The mine on moving ground
The same disclosures record the other half of Cadia’s story. On the evening of
14 April 2026, a seismic event of magnitude 4.5, as reported by Geoscience Australia,
occurred near the Newmont Cadia site. In its update, Newmont said that safety
procedures functioned effectively, and all underground personnel were accounted for and
progressively returned above ground
, and that there had been “no reported
injuries”. Underground operations were paused while assessments continued.
Newmont maintains a running stream of seismic updates for the site, which tells you this is not a one-off curiosity but a monitored operational reality: a large underground mine in ground that moves, where a tremor sends workers to the surface and stops production until the mine is checked. We are reporting the April event from Newmont’s own account and Geoscience Australia’s magnitude, and we draw no conclusion here about cause; what the record establishes is that seismic activity near Cadia is real, recurring enough to warrant its own updates, and capable of halting the region’s biggest operation.
Our read
Cadia is, on any reading, the single biggest private economic actor in the Central West, and Newmont’s own figures put real numbers on that even after you discount them as a company describing itself. The counterweight, also from Newmont’s own disclosures, is that this anchor sits on ground that moves, and underground work stops when it does. For a region whose identity and economy have run on this gold country since 1851, both halves are the story: the contribution is real, and so is the fragility of leaning a district economy on a single deep mine. We will keep tracking both from the primary record, Newmont’s community reporting and its operational updates, and the NSW planning portal where the mine’s modifications are assessed.