Decision Memo Completed

Greens Creek Surface Exploration

Tongass National Forest Juneau, Alaska Admiralty Island National Monument

Proposal to authorize HECLA Greens Creek Mining Company to explore for mineral deposits, including silver, zinc, lead and gold rich volcanogenic massive sulfide mineralization for up to 1 year at the Greens Creek Mine on Admiralty Island.

Location

The Greens Creek Mine is on Admiralty Island approximately 18 miles southwest of Juneau, Alaska and 40 miles north of Angoon, Alaska.

Project timeline

1
Scoping Start
12/13/2024
2
Decision
03/2025 (Estimated)
3
Implementation
03/2025 (Estimated)

NEPA / regulatory detail

Categorical Exclusion32.2 (8), 36 Cfr 220.6(E)(8)
Special AuthorityNot Applicable / Other
Notice and Comment RegulationNot Subject to Regulations
Project ActivitySpecial Use Authorizations; Minerals Or Geology Plans Of Operations
Greens Creek Surface ExplorationDecision Signed Date: 03/05/2025
ForestsTongass National Forest
DistrictsAdmiralty Island National Monument
Legal Land DescriptionNot Applicable
Minerals and geologySpecial use management