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THE JOURNAL - AN OFFICIAL PUBLICATION BY THE ALASKA MINERS ASSOCIATION
DECEMBER 2025 | WWW.ALASKAMINERS.ORG
of the Gallagher and Northern 200 zones. Highlights from 2025 underground drilling into Northern 200S and Galla- gher extensions include: n 4.6 feet (1.4 meters) averaging 11.5 oz/t silver, 0.02 oz/t gold, 2.2% zinc, and 0.9% lead in hole GC6649 (North- ern 200S). n 9.1 feet (2.8 meters) averaging 3.4 oz/t silver, 0.04 oz/t gold, 3.1% zinc, and 7.1% lead in hole GC6652 (Gallagher). n 4.7 feet (1.4 meters) averaging 3.1 oz/t silver, 0.03 oz/t gold, 0.8% zinc, and 1.7% lead in hole GC6667 (Gallagher). Hecla says the mineralized horizon within the Gallagher Zone extension remains open down-dip to the west and is planned for further testing in 2026. Additionally, mineralization intercepted higher in these 2025 holes suggests potential connectivity with the main body of the Gallagher
resource, creating the opportunity to expand this resource area. While third quarter intercepts in the extension of North 200 South are narrow — such as 0.9 feet (0.3 meters) averaging 1.1 oz/t silver, 6.6% zinc, and 10.3% lead in hole GC6648 — the company says they demonstrate that the mineralized horizons con- tinue beyond their currently defined extents and illustrate the strong potential for near-mine exploration to continue making impactful discover- ies that support Greens Creek's mine life extension objectives. Hecla says geophysical surveys and surface drilling have significantly added to its understanding of the geology, alteration, and structural con- trols in underexplored areas at Greens Creek. The company plans to integrate these new geological insights into the district geological model, which will guide the targeting of its 2026 explo- ration at the 9-million-oz-per-year silver mine in Southeast Alaska.
At Greens Creek, the company reports that its 2025 surface and under- ground drill program demonstrates the potential for near-mine resource expansion through systematic testing of mineralized horizons beyond cur- rently defined deposits. Going into 2025, Greens Creek hosted 10.45 tons of proven and probable reserves averaging 9.9 oz/t (103.7 mil- lion oz) silver, 0.08 oz/t (865,000 oz) gold, 6.2% (1.2 billion lb) zinc, and 2.3% (481million lb) lead. Underground exploration drilling at Greens Creek continues to illustrate the strong potential for near-mine discoveries that will continue Hecla's long history of replenishing reserves and extending the life of this largest silver-producing operation in North America. Toward this ongoing resource expan- sion, assays received during the third quarter continue to encounter high- er-grade mineralization in extensions
Hecla explores northern mine extensions BY NORTH OF 60 MINING NEWS
H ecla Mining Company reported recently that its 2025 explora- tion has confirmed high-grade silver expansion areas at its Keno Hill mine in the Yukon and flagship Greens Creek operation in Alaska. Since acquiring Keno Hill in the fall of 2022, Hecla has been steadily build- ing reserves and ramping the mill up to commercial operations. The com- bination of the mill running at about 70% of its commercial capacity, the high-grade nature of the ore, and strong silver prices is helping to trans- form Keno Hill into a cash-generating asset for Hecla. Going into 2025, Keno Hill hosted 2.64 tons of proven and probable reserves averaging 24.3 ounces per ton (64.3 million oz ) silver, 0.01 oz/t (17,000 oz)
gold, 2.4% (126 million lb) zinc, and 2.4% (128 million lb) lead. Hecla reports that its 2025 explora- tion has confirmed the continuation of high-grade silver mineralization below the current reserves within the Bermingham Mine area of Keno Hill. Highlights from 2025 drilling at Ber- mingham Deep include: n 12.5 feet (3.81 meters) averaging 40.4 oz/t silver, 0.01 oz/t gold, 3.8% zinc, and 3.1% lead from a depth of 1,868 feet (569 meters) in hole K-25-0933. n 1.8 feet (0.55 meters averaging 13.6 oz/t silver, 0.3% zinc, and 0.2% lead from a depth of 1,937 feet (590.3 meters) in hole K-25-0933C.
n 2.7 feet (0.82 meters) averaging 13.7 oz/t silver, 3.7% zinc, and 0.2% lead from a depth of 2,177 feet (663.5 meters) in hole K-25-0933C. Hecla says the highest-grade miner- alization in Bermingham Deep occurs where multiple veins intersect — the same geological setting that has his- torically produced the richest zones in the Yukon's famed Keno Hill Silver District — creating opportunities for additional high-grade discoveries below the current reserves. "The discovery is particularly signif- icant as it demonstrates the miner- alized system remains open down plunge, with substantial untested space remaining in favorable host rock," the company wrote.
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