Osisko Drills More High Grades Across Windfall ... May 2026

The site is now fully powered by hydroelectricity through an 85km power line operated by the Cree First Nation of Waswanipi , significantly reducing the project's carbon footprint.

Recent drilling efforts are increasingly focused on infill and expansion programs to de-risk the mine plan and test deep extensions of the high-grade zones.

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. Osisko drills more high grades across Windfall ...

Full-scale construction of the processing plant is slated to take 18–24 months.

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. The site is now fully powered by hydroelectricity

Gold Fields anticipates achieving the first gold pour at Windfall by late Q4 2026 or early 2027 .

Windfall is ranked as a top 10 gold deposit globally by head grade, with reserves averaging 8.1 g/t gold . Full-scale construction of the processing plant is slated

Recent deep drilling has targeted the projected down-plunge extension of the Lynx 4 zone at vertical depths of nearly 1,700 meters, returning significant results such as 81.8 g/t gold over 3.5 meters .