the Odyssey Mine is an underground gold mining project in Malartic, Québec, Canada, part of the Canadian Malartic Complex operated by Agnico Eagle Mines and Yamana Gold (now under Agnico Eagle). It extends the mineralized zones from the nearby Canadian Malartic and Barnat open pits, with construction ongoing and first production from the ramp-accessed zones starting in 2023.
Key details
The project features a planned 1,800-meter-deep shaft and ramp system, targeting peak production of 19,000 tonnes per day of ore at an average grade of 2.75 g/t gold. It aims to become one of Canada’s largest underground gold mines, with full operations expected around 2029-2030 and a mine life extending to 2039 or 2042.
Current status
As of mid-2025, shaft sinking and production blasting continue, with recent milestones like cage completion celebrated. Peak employment is projected at 1,500 workers, supporting the region’s mining economy.
