USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Pima County
Ajo Peak Mine
Unconfirmed Copper Mixed Underground / Surface 1 mapped shaft
Key facts
- State
- Arizona
- County
- Pima
- Mining district
- Ajo District
- Development status
- Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Copper
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former small surface and underground Cu-Ag mine located in the N½ sec. 32, T.12S., R.6W. (Ajo 15 minute topo map), 3 miles SW of Ajo, on private land. Production years are unknown. Mr. Percy Jones and Mr. U.Z. Irwin had unspecified involvement here (…
Additional documented workings
-
Shaft
— documented in 1 source record.
USGS Historical Topographic Mine Features
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 1 shaft symbol
- Shaft : Chico Shunie , 1990
View individual source records (3)
Every underlying record used to build the summary above, for research/verification use.
-
Shaft
Mapped on historical USGS topographic data (Mine Shaft). Historical map features may no longer exist in the field.
- USGS MRDS working type: Surface/Underground
- MRDS work_type documents underground workings: 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
Commodities & minerals
Access & recent conditions
- Land
- mixed ownership
- Source
- USGS MRDS structured record
- Access information last checked
- August 9, 2026
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 (1)
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Record: 1 historical document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
Historical documentation does not imply current access or open workings.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 67940
Supports:
- locality identity
A Mindat locality match does not by itself establish underground workings.
USGS MRDS structured record
Type: Access / land-management source
Supports:
- access / lawful visit information
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Historical mapped workings available