The Tailing Treatment Facility and Upper Slate Lake at the Kensington Mine on Monday, Oct. 14, 2019. Coeur Alaska wants to expand the life of the mine which will require expanding this lake which holds processed material from the mine. The lake has its own water treatment plant which continually processes wastewater. The company says it follows the strictest environmental precautions. (Peter Segall / Juneau Empire)

The Tailing Treatment Facility and Upper Slate Lake at the Kensington Mine on Monday, Oct. 14, 2019. Coeur Alaska wants to expand the life of the mine which will require expanding this lake which holds processed material from the mine. The lake has its own water treatment plant which continually processes wastewater. The company says it follows the strictest environmental precautions. (Peter Segall / Juneau Empire)

Comment period opens for proposed mine operations extension

Expanding the life of the mine means expanding facilities

The Tongass National Forest is seeking the public’s input on a proposed expansion of operations at the Kensington Gold Mine located north of Juneau, the U.S. Forest Service announced Friday.

The Kensington Gold Mine, operated by Coeur Alaska Inc., is an underground gold mine on a mix of patented land and the Tongass National Forest, the Forest Service said in a news release. It has been in production since late June 2010. Kensington provides approximately 387 jobs in Juneau and Southeast Alaska, the release said.

Coeur Alaska Inc. is requesting an operations plan amendment for additional tailings, waste rock disposal and related infrastructure at the mine, the U.S. Forest Service said in a news release. A 45-day public comment period on the supplemental environmental impact statement, which considers the proposed changes to the Plan of Operations, begins on Oct. 30 and will remain open until Dec. 14.

[Digging into Kensington Gold Mine]

The proposed additions would extend the life of the mine. The current predicted life of the Kensington mine currently ends in 2023, according to the Forest Service. Activities under the proposed Plan of Operations Amendment will add 10 years to the expected mine life to 2033.

“The Forest Service recognizes the importance of mineral resources and encourages safe, responsible mineral exploration and development as part of our multiple-use mandate,” said Brad Orr, Juneau District Ranger, in the release. “We are working with Coeur Alaska to analyze potential impacts of their proposed extension of operations for the mine, and public input is an important part of the analysis.”

Workers inside the Kensington Gold Mine on Monday, Oct. 14, 2019. Kensington began its operations in 2010 after a prolonged legal battle over the Tailing Treatment Facility which environmentalists say is a threat to fish habitats. (Peter Segall / Juneau Empire)

Workers inside the Kensington Gold Mine on Monday, Oct. 14, 2019. Kensington began its operations in 2010 after a prolonged legal battle over the Tailing Treatment Facility which environmentalists say is a threat to fish habitats. (Peter Segall / Juneau Empire)

Forest Service experts will work toward minimizing the impacts of mining activities on other forest resources by working closely with the state and other federal agencies with regulatory authority to ensure that measures are in place to protect water quality and nearby aquatic habitats, according to the Forest Service.

Earlier this month the Forest Service began a public comment period on a proposed expansion of the Hecla Greens Creek Mine on Admiralty Island, which is looking to expand its tailings and waste rock facilities as well.

[Coeur Alaska to expand Kensington operations]

According to the release, public comments submitted during this period will be considered and responded to in the Final Environmental Impact Statement and used to help finalize the Draft Decision. Project information, meeting announcements, legal notices, and documents are posted on the project web page at: https://www.fs.usda.gov/project/?project=55533.

Virtual public meetings will be scheduled in Juneau and Haines, the Forest Service said, but did not give dates.

Comments can be submitted several ways:

• Electronically at: https://www.fs.usda.gov/project/?project=55533

• Email to sm.fs.kensington@usda.gov

• Fax to 907-586-8808.

• Mail to 8510 Mendenhall Loop Rd, Juneau AK 99801; attention Kensington Mine Plan Amendment

More in News

The northern lights are seen from the North Douglas launch ramp late Monday, Jan. 19. A magnetic storm caused unusually bright northern lights Monday evening and into Tuesday morning. (Chloe Anderson/Juneau Empire)
Rare geomagnetic storm causes powerful aurora display in Juneau

The northern lights were on full display Monday evening.

Teaser
Weaver Selected For SHI’s Historic Mountain Goat Chilkat Robe Project

Sydney Akagi will weave the first purely mountain goat robe in more than 150 years.

Seven storytellers will each share seven minute-long stories, at the Kunéix Hidi Northern Light United Church at 7 p.m. Tuesday, Feb. 10, benefitting the Southeast Alaska Food Bank. (Photo by Bogomil Mihaylov on Unsplash)
Mudrooms returns to Juneau’s Kunéix Hidi Northern Light United Church

Seven storytellers will present at 7 p.m. on Feb. 10.

The Alaska State Capitol building stands on Tuesday, Jan. 20, 2025. (Mari Kanagy/Juneau Empire)
Rep. Story introduces bill aiming to stabilize education funding

House Bill 261 would change how schools rely on student counts.

Weekly events guide: Juneau community calendar for Feb. 9 – 15
Juneau Community Calendar

Weekly events guide: Feb. 9 – 15

teaser
Juneau activists ask Murkowski to take action against ICE

A small group of protesters attended a rally and discussion on Wednesday.

A female brown bear and her cub are pictured near Pack Creek on Admiralty Island on July 19, 2024. (Chloe Anderson for the Juneau Empire)
Pack Creek permits for bear viewing area available now

Visitors are welcome from April 1 to Sept. 30.

Cars pass down Egan Drive near the Fred Meyer intersection Thursday morning. (Clarise Larson / Juneau Empire file photo)
Safety changes planned for Fred Meyer intersection

DOTPF meeting set for Feb. 18 changes to Egan Drive and Yandukin intersection.

Herbert River and Herbert Glacier are pictured on Nov. 16, 2025. (Mari Kanagy / Juneau Empire)
Forest Service drops Herbert Glacier cabin plans, proposes trail reroute and scenic overlook instead

The Tongass National Forest has proposed shelving long-discussed plans to build a… Continue reading

Most Read