We believe that within a decade the mining industry will look nothing like it does today.Did you know our mine gets most of its electricity from clean hydropower? Production in 2020 is expected to be 8.9 – 9.3 million silver ounces at a cash cost, after by-product credits, of $4.25 – $5.00 an ounce (1).Hecla’s various subsidiaries own 100% of the Greens Creek mine located in Southeast Alaska. In the East Ore Zone, intersections at the north end of the zone, including 56.6 oz/ton silver, 0.13 oz/ton gold, 4.5% zinc and 1.5% lead over 4.3 feet, confirm previously modeled Inferred resource estimates along 150 feet of strike length. Location: The Greens Creek Mine is at an elevation of 1,500 feet on the south side of Greens Creek. The mill produces gold-silver ore. Investors are cautioned not to assume that any part or all of the mineral deposits in such categories will ever be converted into proven or probable reserves. Kennecott Greens Creek currently (2001) is mining approximately 1,680 tons per day from the 200 South, the Southwest, and the West ore zones. Last year, Greens Creek produced 9.9 million ounces of silver at a cash cost, after by-product credits, per silver ounce of $1.97 (a non GAAP measure), and 56,625 ounces of gold (1). Most of the gold recovered from the Admiralty district is a by-product of silver and base metal mining. Greens Creek is a large, underground silver mine located in Southeast Alaska, which also produces smaller amounts of gold, lead, and zinc. Greens Creek mine on Admiralty Island, Alaska To view current job openings at Hecla Greens Creek Mining Company in Juneau, Alaska, please click here. The host rock consists of predominantly marine sedimentary, and mafic to ultramafic volcanic and plutonic rocks, which have been subjected to multiple periods of deformation. Recent intersections from the upper bench mineralization includes 11.5 oz/ton silver, 0.06 oz/ton gold, 6.6% zinc and 3.6% lead over 15.3 feet and 50.5 oz/ton silver, 0.05 oz/ton gold, 1.5% zinc and 0.7 lead over 12.0 feet. The Admiralty mining district is a mining area in the U.S. state of Alaska which consists of Admiralty Island. All rights reserved. Such Canadian information is being included here to satisfy the Company’s “public disclosure” obligations under Regulation FD of the SEC and to provide U.S. holders with ready access to information publicly available in Canada.Reporting requirements in the United States for disclosure of mineral properties under Guide 7 and the requirements in Canada under NI 43-101 standards are substantially different. Totals may not represent the sum of parts due to rounding. The mine is the 5th largest silver producer in the world, and the largest in the US. The category of “inferred resources” is not recognized by Guide 7. The massive ores are further subdivided as either being base-metal or pyrite dominant. Recent intersections from the lower contact mineralization include 4.5 oz/ton silver, 0.05 oz/ton gold, 7.7% zinc and 3.6% lead over 4.0 feet. The focus of the first quarter of 2020 is to further define the East Ore and 200 South zones.Exploration drilling in the fourth quarter focused on the 200 South Zone and expanded upper bench mineralization 350 feet and lower contact mineralization 800 feet down plunge from the current resource model. Installation of the necessary infrastructure was completed in 2006, and use of hydroelectric power commenced during the third quarter of 2006. The mine started production in 1989, and today operates 24-hours a day, 365 days a year. Investors are also especially cautioned that the mere fact that such resources may be referred to in ounces of silver and/or gold, rather than in tons of mineralization and grades of silver and/or gold estimated per ton, is not an indication that such material will ever result in mined ore which is processed into commercial silver or gold.At Greens Creek, the 846,076 tons processed at the mill in 2019 contained 12.4 million ounces of silver, 81,223 ounces of gold, 62,863 tons of zinc, and 24,704 tons of lead. We use innovation and a host of technologies to keep our workers from harm’s way, improve productivity and lower costs. At Hecla Greens Creek, virtually everything we do is designed to care for and protect our very special part of Alaska – and the people who live nearby. These deformational episodes have imposed multiple folding of the orebodies to create a complex geometry. A reconciliation of cash cost, after by-product credits, per silver or gold ounce to cost of sales and other direct production costs and depreciation, depletion and amortization (GAAP) can be found in the legal page of this website. Major sulfide minerals are pyrite, sphalerite, galena, and tetrahedrite/tennanite.Greens Creek is an underground mine which produces approximately 2,100 to 2,300 tons of ore per day. The term “legally,” as used in the definition of reserve, does not imply that all permits needed for mining and processing have been obtained or that other legal issues have been completely resolved. During 2012, the mine again received an increased proportion of its power needs from AEL&P. The term “resource” does not equate to the term “reserve”. Massive ores vary greatly in precious-metal grade from uneconomic to bonanza Au (>.5 opt) and Ag (>100 opt). However, an agreement was reached during 2005 to purchase excess hydroelectric power from the local power company, Alaska Electric Light and Power Company (“AEL&P”). Resources are exclusive of reserves. (1) The term “reserve” means that part of a mineral deposit that can be economically and legally extracted or produced at the time of the reserve determination. Investors are cautioned not to assume that all or any part of a “resource” exists or is economically or legally mineable.
However, the Company is also a “reporting issuer” under Canadian securities laws, which require estimates of mineral resources and reserves to be prepared in accordance with Canadian National Instrument 43-101 (NI 43-101).
In 2017, Greens Creek Mine produced approximately 8,351,882 ounces of silver, 50,854 ounces of gold, 52,547 tons of zinc, and 17,996 tons of lead.
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