A simulated photo shows the tailings stack and other features of Hecla Greens Creek Mine under the final notice of decision for expanding the mine announced Thursday by the U.S Forest Service. The expansion will extend the life of the mine up to 18 years. (U.S. Forest Service)

A simulated photo shows the tailings stack and other features of Hecla Greens Creek Mine under the final notice of decision for expanding the mine announced Thursday by the U.S Forest Service. The expansion will extend the life of the mine up to 18 years. (U.S. Forest Service)

Extending Greens Creek Mine production for 12 to 18 years gets final OK from Forest Service

Agency says there will also be more habitat protection measures and mine waste disposal capacity.

This is a developing story.

A final decision extending production at the Hecla Greens Creek Mine for 12 to 18 years — selected from alternatives that could have extended production up to 40 years — was announced Thursday by the U.S. Forest Service.

Production at the 35-year-old precious metals mine at the northern end of Admiralty Island National Monument will therefore be extended past 2031 until at least 2043. The final notice of decision also states there will be “additional capacity for disposal of mining waste material and increased measures to protect nearby habitats.”

“This decision best addresses the diverse interests and values we heard from (the) public,” said Acting Tongass National Forest Supervisor Clint Kolarich said in a prepared statement. “From the initial comment period to the formal objection period, and through tribal consultation, we received valuable input to help inform the final decision for this project. This input is clearly reflected in our phased approach to implementation and in the Collaborative Integrated Monitoring Panel we will establish.”

The first phase of expansion will begin immediately and provide the mine about 1.9 million cubic yards of additional tailings disposal capacity over the first three years, according to a Forest Service press release. The second phase will provide an additional 2.7 million cubic yards in years eight through ten, but that phase cannot begin until certain steps including implementation of small particle dust mitigation and a review of environmental effects occur.

“The Selected Alternative will generate up to 10.6 acres of new surface disturbance on National Forest System lands within the Juneau Ranger District and 0.3 acres of new surface disturbance within the Admiralty Island National Monument,” the Forest Service’s report on the final decision states.

Hecla Greens Creek Mining Co. had sought to expand its 8.5-million-cubic yard disposal facility for tailings and waste rock storage to accommodate up to five million additional cubic yards, anticipating the current facility will be at capacity by 2025.

Two other development options and one no-development option were proposed in a Draft Supplemental Environmental Impact Statement released by the Forest Service in March of 2023. The largest extended operations by 27 to 40 years, while the middle-development scenario extended operations 17 to 28 years. A draft decision for the 12- to 18-year extension was announced by the Forest Service in February of this year.

The Greens Creek Mine is the nation’s largest silver producer and unique in that it operates within a national monument, according to the USFS.

The announcement of the final decision comes a day after Helca released its earnings report for the third quarter of 2024. It reports revenues of $245.1 million — 45% from silver, 32% from gold — which it states are the second highest in the company’s history. However, while the reported gross profit of $59.3 million was a 15% increase from the previous quarter, the net income of $1.6 million was $26.1 million reduction from the prior quarter, which the report attributed to some write-downs from suspended operations, losses on foreign currency exchanges and other factors.

Helca also announced this week Rob Krcmarov is the new president and CEO, who most recently served for 13 years on the executive leadership team at Barrick Gold Corp. based in Toronto.

Angoon residents and leaders, during a meeting in May of 2023, generally expressed opposition to extending the mine’s operation due to concerns about impacts on residents’ health and the ecosystem, as well as complaints the company was not doing more to aid the villages’ fiscal stability and job sector.

Among the supporters of an extension during the review period for the proposals was the Alaska Miners Association, which in a letter in May of 2023 stated Hecla “was the largest private-sector employer and taxpayer in Juneau, with a direct economic impact in local communities of more than $219 million.”

Hecla agreed during that month to pay a $143,124 fine and to take corrective action to settle a series of hazardous waste violations discovered during a 2019 inspection. According to the U.S. Environmental Protection Agency, violations included lead-containing dust outside of the building used to store the mine’s milled concentrate, improper disposal of lead-containing items used in ore processing, and lapses in inspection and labeling.

• Contact Mark Sabbatini at mark.sabbatini@juneauempire.com or (907) 957-2306.

More in News

Map showing approximate location of a 7.0-magnitude earthquake on Saturday, Dec. 6, 2025. (Courtesy/Earthquakes Canada)
7.0-magnitude earthquake hits Yukon/Alaska border

Earthquake occurred about 55 miles from Yakutat

A commercial bowpicker is seen headed out of the Cordova harbor for a salmon fishing opener in June 2024 (Photo by Corinne Smith)
Planned fiber-optic cable will add backup for Alaska’s phone and high-speed internet network

The project is expected to bring more reliable connection to some isolated coastal communities.

Gustavus author Kim Heacox talked about the role of storytelling in communicating climate change to a group of about 100 people at <strong>Ḵ</strong>unéix<strong>̱</strong> Hídi Northern Light United Church on Wednesday, Dec. 3, 2025. (Mari Kanagy / Juneau Empire)
Author calls for climate storytelling in Juneau talk

Kim Heacox reflects on what we’ve long known and how we speak of it.

The Juneau road system ends at Cascade Point in Berners Bay, as shown in a May 2006 photo. (Michael Penn / Juneau Empire file)
State starts engineering for power at proposed Cascade Point ferry terminal

DOT says the contract for electrical planning is not a commitment to construct the terminal.

Members of the Alaska Air and Army National Guard, Alaska Naval Militia, and Alaska State Defense Force work together to load plywood onto a CH-47 Chinook helicopter, in Bethel, Alaska, Nov. 2, 2025, bound for the villages of Napaskiak, Tuntutuliak, and Napakiak. The materials will help residents rebuild homes and restore community spaces damaged by past storms. (U.S. Army National Guard photo by Spc. Ericka Gillespie)
Gov. Dunleavy approves Alaska National Guard assisting ICE in Anchorage

The National Guard said five service members will assist with administrative support; lawmakers and civil rights advocates worry that the move signals a ramping up of immigration enforcement operations in Alaska

A cruise ship, with several orange lifeboats visible, is docked in downtown Juneau. (Laurie Craig / Juneau Empire file photo)
CBJ seeks input on uses for marine passenger fees

Public comment period is open for the month of December.

Browsers crowd into Annie Kaill’s gallery and gift shop during the 2024 Gallery Walk. (Juneau Empire file photo)
Gallery Walk guide for Friday, Dec. 5

The Juneau Arts & Humanities Council announced community events taking place during… Continue reading

The Alaska State Capitol is seen on Tuesday, Nov. 25, 2025. (Photo by James Brooks/Alaska Beacon)
Alaska Senate Republicans confirm Rauscher, Tilton and open two vacancies in state House

The Alaska Republican Party is moving quickly after Republicans in the Alaska… Continue reading

Downtown Skagway, with snow dusting its streets, is seen in this undated photo. (Photo by C. Anderson/National Park Service)
Skagway’s lone paramedic is suing the city, alleging retaliation by fire department officials

This article was reported and published in collaboration between the Chilkat Valley… Continue reading

Most Read