Greens Creek Mine

Project Description

The Greens Creek Mine is an underground cut-and-fill and long hole stoping operation using grinding and flotation processes to recover zinc and lead, and gravity processes to recover silver and gold. The mine is located in southeast Alaska, in the Tongass National Forest near Hawk Inlet on Admiralty Island National Monument, approximately 18 miles southwest of Juneau, on U.S. Forest Service and private patented land within the City and Borough of Juneau. Access to the mine is by sea, and a 13-mile access road. The project is operated by Hecla Greens Creek Mining Company (HGCMC). The major Greens Creek Mine facilities include the Greens Creek underground mine, surface mill, dry stack tailings facility, tailings storage facility, water treatment system, wastewater treatment plant, administrative and camp facilities, ferry dock and ship-loading facility. Power is supplied by hydroelectric infrastructure and diesel generators. The mine started production in 1989, and today operates 24-hours a day, 365 days a year. In 2014, Greens Creek Mine produced approximately 7,826,341 ounces of silver, 58,753 ounces of gold, 59,810 tons of zinc, and 20,151 tons of lead.

Permits, Approvals, Authorizations, and Financial Assurance

Reclamation/Closure Bond & Audits MOU (USFS, ADNR, ADEC, KGCMC) (PDF) (06/30/2014)

Reclamation/Closure Bond & Audits MOU Modification No. 1 (USFS, ADNR, ADEC) (PDF) (01/29/2015)

Alaska Department of Natural Resources (DNR)
Alaska Department of Environmental Conservation (DEC)

The current discharge permits are available from DEC's Division of Water permit website (
The link includes the following documents:

Alaska Department of Fish and Game (ADFG)

U.S. Environmental Protection Agency (EPA)
Five-year Environmental Audits
Greens Creek Mine 5-Year Environmental Audit (March 2009)

Support Documents
HGCMC General Plan of Operations 2014 - Appendices 1, 3, 7, 11 & 14
Greens Creek Mining Company General Plan of Operations 2004 (PDF)
Final Environmental Impact Statement
Inspection Reports


Archive of Inspections

Annual Meetings and Annual Reports
Annual Meeting

2015 Annual Agency Meeting
July 9, 2015 8:30AM-3:30PM
DEC Juneau Offices (410 Willoughby Ave) 2nd Floor Main Conference Room

Meeting Agenda
Annual Reports

Archive of prior Annual Meetings and Reports

For More Information Contact

State of Alaska Large Mine Permitting Team
Kyle Moselle
Large Mine Coordinator
Alaska Department of Natural Resources
Office of Project Management and Permitting
400 Willoughby Avenue, Suite 400
Juneau, AK 99801
Phone: (907) 465-6849
Fax: (907) 586-2954

Matthew Reece
USDA Forest Service
8510 Mendenhall Loop Road
Juneau, Alaska 99801
Telephone: (907) 586-8800
Fax Number: (907) 586-8808

Return to top