USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Mono County
Cornucopia
Unconfirmed Silver Underground
Key facts
- State
- California
- County
- Mono
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Silver
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former Ag-Pb-Cu mine located in sec. 18, T2S, R32E, MDM, 0.6 km (1,900 feet) ESE of Buscones Hill (coordinates of record), at the head of Last Chance Gulch, on National Forest land (private land ?). MRDS database stated accuracy for this location is …
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 5 shaft symbols
- 28 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
Commodities & minerals
Reported minerals
- Cerussite
- Cuproroméite
- Dioptase
- Galena
- Malachite
- Tetrahedrite Subgroup
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 (5)
- mapped adit symbols (28)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 83083
Supports:
- locality identity
- reported minerals (6)
A Mindat locality match does not by itself establish underground workings.
Related underground mines
Eva Bell
California · Mono County
Unconfirmed Silver Past Producer Underground
Documented adit evidence
Borasco
California · Mono County
Unconfirmed Silver Past Producer
Historical mapped workings available
Comanche & Kerrick
California · Mono County
Unconfirmed Silver Past Producer
Historical mapped workings available
Comanche Mine
California · Mono County
Unconfirmed Silver Past Producer
Documented adit evidence