USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Amador County
Kennedy
Unconfirmed Gold Underground
Key facts
- State
- California
- County
- Amador
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Gold
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former Au-Pb mine located in the SW¼SW¼ sec. 16 and in secs. 17, 20 & 21, T6N, R11E, MDM, 1.5 km (0.9 mile) E of Martell and 2.1 km (6,900 feet) NNW of Jackson, on private land. Discovered in 1856. Property consisted of 156 acres which included the l…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 12 shaft symbols
- 1 adit symbol
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
Commodities & minerals
Reported minerals
- Quartz
- Galena
- Gold
- Ankerite
- Apatite
- Arsenopyrite
- Chalcopyrite
- Fluorapatite
View all 16 reported minerals
- Quartz
- Galena
- Gold
- Ankerite
- Apatite
- Arsenopyrite
- Chalcopyrite
- Fluorapatite
- Galena
- Gold-bearing Pyrite
- Native Gold
- Pyrite
- Pyrophyllite
- Quartz
- Sphalerite
- Strengite
Access & recent conditions
- Land
- private property
- Source
- Kennedy Mine Foundation public site
- Access information last checked
- August 9, 2026
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 (12)
- mapped adit symbols (1)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 73720
Supports:
- locality identity
- reported minerals (13)
A Mindat locality match does not by itself establish underground workings.
Kennedy Mine Foundation public site
Type: Access / land-management source
Supports:
- access / lawful visit information
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