USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Amador County
Kremmel and Froelich
Unconfirmed Chromium Mixed Underground / Surface 1 mapped shaft
Key facts
- State
- California
- County
- Amador
- Development status
- Past Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Chromium
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former Cr occurrence/mine located in sec. 3, T5N, R10E, and in sec. 34, T6N, R10E, MDM, 2.2 km (1.4 miles) SE of Sunnybrook and about 4½ miles ESE of Ione, on private land. MRDS database stated accuracy for this location is 100 meters. Mineralizat…
Additional documented workings
-
Shaft
— documented in 1 source record.
USGS Historical Topographic Mine Features
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 1 shaft symbol
- Shaft : Jackson , 1962
View individual source records (3)
Every underlying record used to build the summary above, for research/verification use.
-
Shaft
Mapped on historical USGS topographic data (Mine Shaft). Historical map features may no longer exist in the field.
- Derived from MRDS oper_type (existing operation): Surface-Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Surface-Underground · oper_type
Verification
Unconfirmed
Source records support underground workings, but UndergroundMines has not yet independently verified this mine.
Why it's listed
Source records document both underground and surface mining.
History & operations
Historical record
- Development status: Past Producer
Commodities & minerals
Reported minerals
- Magnesiochromite
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 (1)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 73724
Supports:
- locality identity
- reported minerals (1)
A Mindat locality match does not by itself establish underground workings.
Related underground mines
Fields
California · Amador County
Unconfirmed Chromium Past Producer
Allen Property
California · Amador County
Unconfirmed Chromium Past Producer
Historical mapped workings available
Carr and Mefford
California · Amador County
Unconfirmed Chromium Past Producer
Documented shaft evidence