The Lucky Friday unit is a deep underground silver, lead and zinc mine that is located in the Coeur d Alene Mining District in northern Idaho. The mine uses mining methods, such as ramp access, cut and fill. It utilizes rubber-tired equipment and conducts a variety of engineering, procurement and development activities. The Lucky Friday unit is owned and operated by Hecla Mining Company, which is one of the largest producers of silver in the United States. Hecla Mining Company is a publicly traded business that has been in operation since 1891. The company specializes in the mining of [precious metals.