Calcatreu is Patagonia's flagship open-pit heap-leach project in Río Negro. Construction began in 2025, leaching started in April 2026 and 518 gold-equivalent ounces of first gold-silver doré were dispatched in June 2026. Ramp-up is continuing and commercial production has not been declared.
- Country
- Argentina
- Commodity
- Au
- Stage
- Construction