USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Yuma County
Bryan Mountain Prospect
Mindat Confirmed Copper Underground
Key facts
- State
- Arizona
- County
- Yuma
- Development status
- Occurrence
- Mine type
- Underground
- Primary commodity
- Copper
- Verification
- Mindat Confirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
An Cu-Fe occurrence/prospect with underground workings located in sec. 34, T12S, R11W, on the eastern slope of the Bryan Mountains, about 1½ miles from the NW end of the range, on state of Arizona land. Mineralization is narrow veins of glassy quart…
View individual source records (3)
Every underlying record used to build the summary above, for research/verification use.
- USGS MRDS working type: Underground
- Documented in Mindat locality data. Evidence: An Cu-Fe occurrence/prospect with underground workings located in sec. 34, T12S, R11W, on the eastern slope of the Bryan Mountains, about 1½ miles from the NW end of the ran…
- MRDS work_type documents underground workings: Underground · work_type
Verification
Mindat Confirmed
Mindat locality corroborates underground workings.
Why confirmed?
Mindat locality corroborates underground workings.
Why it's listed
USGS source data documents underground workings for this record.
History & operations
Historical record
- Development status: Occurrence
Commodities & minerals
Reported minerals
- Epidote
- Quartz
- Sericite
- Hematite
- Magnetite
- Malachite
- Epidote
- Hematite
View all 12 reported minerals
- Epidote
- Quartz
- Sericite
- Hematite
- Magnetite
- Malachite
- Epidote
- Hematite
- Magnetite
- Malachite
- Muscovite
- Sericite
Access & recent conditions
- Land
- unknown
Community reports
No community field reports yet.
I Visited This MineSources & evidence
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 44777
Supports:
- locality identity
- reported minerals (6)
- underground workings
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Historical mapped workings available