USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Gila County
Pinto Valley
Unconfirmed Copper Mixed Underground / Surface
Key facts
- State
- Arizona
- County
- Gila
- Mining district
- Globe-Miami District
- Development status
- Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Copper
- Verification
- Unconfirmed
Also known as
- Pinto Valley Mine, Castle Dome Mine
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
An open pit copper and molybdenum mine. The mine was originally owned by Miami Copper Company in 1909, and has been held by numerous owners through to the early 1970s. A mine mill and other building infrastructure were constructed by Cities Servi…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 6 shaft symbols
- 12 adit symbols
View individual source records (2)
Every underlying record used to build the summary above, for research/verification use.
- USGS MRDS working type: Surface/Underground
- MRDS work_type documents underground workings: Surface, Surface/Underground · work_type
Verification
Unconfirmed
Source records support underground workings, but UndergroundMines has not yet independently verified this mine.
Why it's listed
Source records document both underground and surface mining.
History & operations
Historical record
- Development status: Producer
Operators / organizations
- Broken Hill Proprietary Co. Ltd. · Source-reported owner · 1996
- BHP BILLITON GROUP · Historical operator · 2009
- Magma Copper Co., Pinto Valley Div. · Historical operator · 1987
Commodities & minerals
Reported minerals
- Barite
- Calcite
- Chlorite
- Epidote
- Fluorite
- Gypsum
- Kaolinite
- Quartz
View all 28 reported minerals
- Barite
- Calcite
- Chlorite
- Epidote
- Fluorite
- Gypsum
- Kaolinite
- Quartz
- Sericite
- Anglesite
- Chalcanthite
- Chalcocite
- Chalcopyrite
- Covellite
- Cuprite
- Galena
- Gold
- Malachite
- Molybdenite
- Pyrite
- Silver
- Sphalerite
- Turquoise
- Wavellite
- Wulfenite
- Azurite
- commodity:Copper
- commodity:Molybdenum
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 shaft symbols (6)
- mapped adit symbols (12)
Historical mapped features may no longer exist.
Arizona Geological Survey / ADMMR
Type: Historical mine documents
Record: 1 historical document
Supports:
- historical mine identity
- historical mine documentation
Pinto Valley Mine (2007)
Historical documentation does not imply current access or open workings.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 445376
Supports:
- locality identity
- reported minerals (2)
A Mindat locality match does not by itself establish underground workings.
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