Once at steady state, the mine is projected to produce 300,000 ounces of gold annually . Key Metrics & Infrastructure
Continued expansion drilling outside of the existing Mineral Resource Estimate (MRE) blocks has confirmed the presence of new high-grade mineralization that remains open for further growth. Osisko drills more high grades across Windfall ...
The feasibility study projected an All-In Sustaining Cost ( AISC ) of approximately US$758–$760 per ounce , positioning it as one of the lowest-cost mines in Canada. Once at steady state, the mine is projected
As of April 2026, the has transitioned from an exploration-focused play to a high-priority development asset under the full ownership of Gold Fields , which completed a $2.1 billion acquisition of Osisko Mining in October 2024. While the project is moving toward construction, drilling continues to yield the "bonanza" grades that made the deposit famous. Latest Drilling & Exploration Highlights (Early 2026) As of April 2026, the has transitioned from
Recent infill results (February 2026) continue to show high-grade continuity, with some intercepts reaching average grades of 11.3 g/t Au in the measured category. Project Status and Path to Production