USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Pima County
Nequilla Mine
Mindat Confirmed Lead Underground
Key facts
- State
- Arizona
- County
- Pima
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Lead
- Verification
- Mindat Confirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former underground Pb-Ag mine located in sec. 5, T14S, R12E, on county land. Mineralization is a vein 4 to 5 feet wide. Workings include a shaft 90 feet deep (1881).
Additional documented workings
-
Shaft
— documented in 1 source record,
noting 90 ft deep.
Mindat
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 2 shaft symbols
View individual source records (3)
Every underlying record used to build the summary above, for research/verification use.
-
Shaft
· depth 90 ft
Documented in Mindat locality data. Evidence: 5, T14S, R12E, on county land. Mineralization is a vein 4 to 5 feet wide. Workings include a shaft 90 feet deep (1881). Historical co…
- Derived from MRDS oper_type (existing operation): Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Underground · oper_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: Past Producer
Commodities & minerals
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 (2)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 52258
Supports:
- locality identity
- underground workings
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Documented shaft evidence