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We’re Hecla
© 2022 Hecla Mining Company. All rights reserved
Mine Type
Ownership
Silver
Gold
Lead
Zinc
***All metals reflect 2022 production
ꦍThe salaries and taxes we pay contribute to making Juneau a better place to live – from enabling our employees to own good homes, to helping our local government provide essential services. These expenditures radiate throughout the community – from employees taking their families to locally owned restaurants to supporting seemingly unrelated jobs within local governments and businesses.
Learn more about our economic impact on the Juneau community.
In addition, the men and women of Hecla Greens Creek are empowered to leverage the resources of our company to benefit the community – from making charitable contributions to local schools and nonprofit organizations, to rallying participation in volunteerism.We annually support about 60 local and youth groups, art and education programs. We also proactively provide programs, marketing and information to help guide local residents into great careers at Hecla Greens Creek. We call that “Miner Strong” – and it’s something Hecla does at all its operations.
To review the 2013 Final Environmental Impact Statement and Record of Decision for the Greens Creek Mine tailings disposal facility expansion, please go here.
Updated Expansion Plan
Greens Creek files plan to expand tailings disposal facilityExpected to extend mine’s operation
JUNEAU, AK – Hecla Greens Creek mine has filed an amendment to its General Plan of Operations to expand its Tailing Disposal Facility (TDF) by approximately 13.7 acres. The expansion is primarily inside the existing U.S. Forest Service lease area and should allow mine operations to continue past 2031, when the current facility is expected to be full. “This amendment culminates years of careful planning to develop a plan that minimizes impacts on Admiralty Island National Monument and the fish-bearing sections of Tributary Creek,” said Greens Creek VP and General Manager Brian Erickson. “We believe our proposed plan maximizes disposal volume and minimizes new disturbance.” The filing sets off a formal process under the National Environmental Policy Act (NEPA), which began with the October 9, 2020 publication of a . The NOI describes the proposed scoping process, including meetings and how the public can get involved, along with consultations with tribes.Supplemental Environmental Impact Statement (SEIS) to 2013 Record of Decision
USFS Project website:October 2020—Virtual scoping meetings and public comment
November 2020—Scoping comments closed
February 2022—Draft SEIS published and public comment
April 2022—DSEIS public comments closed
December 2022—Draft record of decision and objection period
March 2023—Final record of decision
March 2027—All other federal, state, local permits in hand
Email: hgcmcinformation@hecla-mining.com
Phone: (907) 789-8100
Mailing: Hecla Greens Creek
PO Box 32199
Juneau, AK 99803
If you’re looking for a career in mining, look here.🐈 To apply for current job openings at Greens Creek complete a If you are interested in more than one position, a separate application must be submitted
Tons(000) | Silver(oz/ton) | Gold(oz/ton) | Lead(%) | Zinc(%) | Silver(000 oz) | Gold(000 oz) | Lead(Tons) | Zinc(Tons) | |
---|---|---|---|---|---|---|---|---|---|
7 |
16.1
| 0.07 | 2.3 | 5.4 | 108 | 0.4 |
150
| 360 | |
10,668
| 10.9 | 0.09 | 2.5 | 6.5 |
116,748
| 935 |
264,600
|
694,800
| |
Proven and Probable Reserves |
10,675
|
10.9
| 0.09 | 2.5 | 6.5 | 116,856 | 935 | 264,750 |
695,160
|
– | – | – | – | – | – | – | – | – | |
8,421 | 12.9 | 0.10 | 2.9 | 8.0 | 108,717 | 810 | 245,990 |
675,740
| |
M&I Resources |
8,421
| 12.9 | 0.10 | 2.9 | 8.0 | 108,717 | 810 | 245,990 |
675,740
|
2,383
| 12.1 | 0.07 | 2.8 | 6.9 | 28,949 |
178
| 67,400 | 164,080 |
(2) Mineral reserves are based on $17/oz silver, $1600/oz gold, $0.90/lb lead, $1.15/lb zinc, unless otherwise stated. All Mineral Reserves are reported in-situ with estimates of mining dilution and mining loss.
(3) The reserve NSR cut-off values for Greens Creek are $210/ton for all zones except the Gallagher Zone at $215/ton; metallurgical recoveries (actual 2022): 81% for silver, 72% for
gold, 82% for lead, and 89% for zinc.
(12) Mineral resources are based on $1700/oz gold, $21/oz silver, $1.15/lb lead, $1.35/lb zinc and $3.00/lb copper, unless otherwise stated.
꧙
(13) The resource NSR cut-off values for Greens Creek are $210/ton for all zones except the Gallagher Zone at $215/ton; metallurgical recoveries (actual 2022): 81% for silver, 72% for gold, 82% for lead, and 89% for zinc.
2018 |
2019 |
2020 |
2021 | 2022 | |
---|---|---|---|---|---|
Silver (ounces) | 7,953,003 | 9,890,125 | 10,494,726 | 9,243,664 | 9,741,935 |
Gold (ounces) | 51,493 | 56,625 | 48,491 | 46,088 | 48,216 |
Lead (tons) | 18,960 | 20,112 | 21,400 | 19,873 | 19,480 |
Zinc (tons) | 55,350 | 56,805 | 56,814 | 53,648 | 52,312 |
Development – the tunneling or accessing phase
Using plans from the geology and engineering departments, miners drive tunnels 15ft high by 15ft wide to access the various ore zones to be mined.Production – the extraction phase
The method of extraction depends upon the geological nature of the orebody involved. Some of the smaller, more contorted orebodies are extracted using the same tunneling procedure as the development phase. In other more massive orebodies, larger scale extraction methods are used, sometimes producing voids of up to 150ft long, 25ft wide and 120ft deep.Backfilling – the replacement phase
The voids created during the production phase are filled up with a combination of mill waste (tailings) and cement. This “backfilling” process stabilizes the production voids and allows extraction of the ore beside, above, and even below the backfilled area.