Once at steady state, the mine is projected to produce 300,000 ounces of gold annually . Key Metrics & Infrastructure
Gold Fields anticipates achieving the first gold pour at Windfall by late Q4 2026 or early 2027 . Osisko drills more high grades across Windfall ...
Windfall is ranked as a top 10 gold deposit globally by head grade, with reserves averaging 8.1 g/t gold . Once at steady state, the mine is projected
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. The site is now fully powered by hydroelectricity
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)
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 .