USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Humboldt County
Copper Bluff
Unconfirmed Copper Underground 1 mapped adit
Key facts
- State
- California
- County
- Humboldt
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Copper
- Verification
- Unconfirmed
Also known as
- Hoopa Indian Tribe
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former Cu-Au-Ag-Zn occurrence/mine located in sec. 2, T8N, R4E, and in sec. 35, T9N, R4E, HM, 6.6 km (4.1 miles) N of Hoopa, along the Trinity River (eastern bank), on Indian Reservation land. Last operated 1966. Exploration by Eagle Pitcher Co. (196…
Additional documented workings
-
Adit
— documented in 1 source record.
USGS Historical Topographic Mine Features
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 1 adit symbol
- Adit : Hoopa , 1979
View individual source records (3)
Every underlying record used to build the summary above, for research/verification use.
-
Adit
Mapped on historical USGS topographic data (Adit). Historical map features may no longer exist in the field.
- Derived from MRDS oper_type (existing operation): Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Underground · oper_type
Verification
Unconfirmed
Source records support underground workings, but UndergroundMines has not yet independently verified this mine.
Why it's listed
USGS source data documents underground workings for this record.
History & operations
Historical record
- Development status: Past Producer
Commodities & minerals
Reported minerals
- Chalcopyrite
- Pyrite
- Quartz
- Sphalerite
Access & recent conditions
- Land
- unknown
Community reports
No community field reports yet.
I Visited This MineSources & evidence
USGS Historical Topographic Mine Features
Type: Historical mapped physical features
Dataset: DOI 10.5066/P9TAALR6
Supports:
- mapped adit symbols (1)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 245439
Supports:
- locality identity
- reported minerals (4)
A Mindat locality match does not by itself establish underground workings.
Related underground mines
Horse Mountain
California · Humboldt County
Unconfirmed Copper Past Producer Underground
Documented adit evidence