USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Santa Cruz County
Hermosa Mine
Unconfirmed Manganese Underground
Key facts
- State
- Arizona
- County
- Santa Cruz
- Mining district
- Harshaw District
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Manganese
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, Arizona: 42. Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains,…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 7 shaft symbols
- 5 adit symbols
View individual source records (2)
Every underlying record used to build the summary above, for research/verification use.
- USGS MRDS working type: Underground
- MRDS work_type documents underground workings: Underground · work_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
- ASARCO · Historical operator · 2013
- Grover Marsteller ) · Source-reported owner
Commodities & minerals
Reported minerals
- Hematite
- Limonite
- Psilomelane
- Cerargyrite
- Chlorargyrite
- Hematite
- Limonite
- Molybdenite
View all 11 reported minerals
- Hematite
- Limonite
- Psilomelane
- Cerargyrite
- Chlorargyrite
- Hematite
- Limonite
- Molybdenite
- Psilomelane
- Pyrolusite
- Wad
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 (7)
- mapped adit symbols (5)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 33884
Supports:
- locality identity
- reported minerals (7)
A Mindat locality match does not by itself establish underground workings.
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