USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · San Bernardino County
Cadiz Dry Lake
Unconfirmed Calcium Mixed Underground / Surface
Key facts
- State
- California
- County
- San Bernardino
- Development status
- Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Calcium
- Verification
- Unconfirmed
- California DMR status
- ACTIVE
- Reclamation status
- RECLAMATION NOT STARTED
- DMR report year
- 2025
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A Ca-Na-salt-K-Sr-gypsum/anhydrite-Li deposit/mines located in T2 & 3N, R15E, SBM, about 12 miles ESE of Danby Dry Lake and SE of Amboy. Although the Ca, Na, gypsum, Sr, and Li occurrences are spread over different localities, Cadiz Dry Lake is trea…
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): Surface-Underground
- MRDS oper_type documents existing underground operation (dev_stat=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
California state reporting
- Operator: TETRA TECHNOLOGIES, INC.
- Report year: 2025
Historical record
- Development status: Producer
Commodities & minerals
Reported minerals
- commodity:Lithium
- Halite
Access & recent conditions
- Land
- unknown
Community reports
No community field reports yet.
I Visited This MineSources & evidence
California DMR Mines Online
Type: California state mining record
Record: 91-36-0043
Supports:
- operation status
- reclamation information
- reporting year
- operation type
A DMR match does not by itself prove underground workings.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 88232
Supports:
- locality identity
- reported minerals (2)
A Mindat locality match does not by itself establish underground workings.
Related underground mines
Bristol Dry Lake Pit
California · San Bernardino County
Unconfirmed Calcium Producer