Hecla Mining is a gold, silver, and other precious metals mining company based in Coeur d'Alene, Idaho. Founded in 1891, it is the second-largest mining...

The Calumet and Hecla Mining Company was a major copper-mining company based within Michigan's Copper Country. In the 19th century, the company paid out...

equal partnership with Hecla Mining to develop the Star Ore and develop the zinc plant, calling the company the Sullivan Mining Company. The Star ore was...

various RMS Hecla, Cunard Line ocean liner Hecla Mining, Idaho based mining company Calumet and Hecla Mining Company, Michigan, USA Calumet & Hecla Band Hekla...

zinc mine in the western United States, near Mullan, Idaho. Operated by Hecla Mining company, it is one of the few mines remaining operational in the Silver...

2012). Barrick Gold Coeur Mining Hecla Mining KGHM Polska Miedź Kinross Gold Newmont Corporation SSR Mining Sprott Mining Nevada portal List of active...

mines were significant silver producers. The Greens Creek mine, owned by Hecla Mining, produced 8,452,153 troy ounces of silver. Teck Resources' Red Dog mine...

companies closed, leaving only the Calumet and Hecla, Quincy, and Copper Range mining companies. Both Calumet and Hecla and Quincy survived largely by reprocessing...

polymetallic deposit, which also produces lead and silver concentrates. Hecla Mining's Greens Creek mine located 17 mi (27 km) south-southwest of Juneau, Alaska...

Silver mining is the extraction of silver by mining. Silver is a precious metal and holds high economic value. Because silver is often found in intimate...