The world's top 10 largest silver mines in 2020 - report ...
2021-4-9 · Hecla’s 100%-owned and operated Greens Creek mine in southeast Alaska is one of the largest and lowest-cost primary silver mines in the world, and is the cash generating engine of the company. The Greens Creek orebody contains silver, zinc, gold and lead, and lies within the Admiralty Island National Monument, an environmentally sensitive area.