Hecla Mining is a holding company. Through its subsidiaries, Co. discovers, acquires and develops mines and other mineral interests and produces and markets concentrates, carbon material, and unrefined dore. Co. is organized in four segments that include its operating mines and primary assets being Greens Creek, Lucky Friday, Casa Berardi and the Nevada Operations. Co. produces zinc, silver and precious metals flotation concentrates at Greens Creek and zinc flotation concentrates at Lucky Friday, each of which it sells to custom smelters and metal traders. Co. also produces unrefined gold and silver bullion bars (dore), loaded carbon and precipitates at Casa Berardi and Nevada Operations.