USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Pima County
Elgin Mine Group
Unconfirmed Copper Underground
Key facts
- State
- Arizona
- County
- Pima
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Copper
- Verification
- Unconfirmed
Also known as
- General, Dan
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 92. Arizona Bureau of mines Field Notes (1971): 1(2). Drewes, H.D. (1971) Geologic map of the Sahuarita quadrangle, sou…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 10 shaft symbols
- 13 adit symbols
View individual source records (2)
Every underlying record used to build the summary above, for research/verification use.
- 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
Operators / organizations
- Helvetia Mining Trust · Historical operator
- Mc Farland-Hullinger · Historical operator · 1960
Commodities & minerals
Reported minerals
- Bornite
- Chalcocite
- Chalcopyrite
- Chrysocolla
- Cuprite
- Diopside
- Garnet Group
- Magnetite
View all 11 reported minerals
- Bornite
- Chalcocite
- Chalcopyrite
- Chrysocolla
- Cuprite
- Diopside
- Garnet Group
- Magnetite
- Malachite
- Molybdenite
- Pyrite
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 (10)
- mapped adit symbols (13)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 57464
Supports:
- locality identity
- reported minerals (11)
A Mindat locality match does not by itself establish underground workings.
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