Ace of Spades
California
Unconfirmed Chromium
Chromium underground mines
Catalog records where USGS source data lists Chromium among mined commodities. Reported minerals on a mine page are tracked separately and are not the same as commodities.
- Underground mine records
- 268
- Independently verified
- 0
By state
- California · 230
- Nevada · 1
Top counties by record count
- Fresno County, California · 27
- Del Norte County, California · 22
- Placer County, California · 21
- San Luis Obispo County, California · 20
- Siskiyou County, California · 18
- El Dorado County, California · 14
- Napa County, California · 13
- Tuolumne County, California · 12
- Calaveras County, California · 12
- Nevada County, California · 10
- Sierra County, California · 8
- Butte County, California · 6
Representative records
Adobe Canyon Group
California
Unconfirmed Chromium
Alice
California
Unconfirmed Chromium
Allen Property
California
Unconfirmed Chromium
Historical mapped workings available
Alta Hill Mine
California
Unconfirmed Chromium
Historical mapped workings available
American Asbestos & Manufacturing Co. Mine
California
Unconfirmed Chromium
B.B.
California
Unconfirmed Chromium
Bacon Mine
California
Unconfirmed Chromium
Barnes Mine
California
Unconfirmed Chromium
Bartholomew-Simms Lease
California
Unconfirmed Chromium
Bear River Chrome Mine
California
Unconfirmed Chromium
Bear Wallow
California
Unconfirmed Chromium
Historical mapped workings available
Beat Claim
California
Unconfirmed Chromium
Bessie B
California
Unconfirmed Chromium
Big Five
California
Unconfirmed Chromium
Black Bart Group
California
Unconfirmed Chromium
Black Bart Mine
California
Unconfirmed Chromium
Black Bear
California
Unconfirmed Chromium
Black Hawk Claim
California
Unconfirmed Chromium
Black Oak
California
Unconfirmed Chromium
Bonanza Claim
California
Unconfirmed Chromium
Historical mapped workings available
Bonanza Claim
California
Unconfirmed Chromium
Historical mapped workings available
Bowie Estate
California
Unconfirmed Chromium
Bowlin Mine
California
Unconfirmed Chromium
Brown Bird
California
Unconfirmed Chromium
Browns Mine
California
Unconfirmed Chromium
Documented shaft/adit evidence
Bull Dog
California
Unconfirmed Chromium
Bunker Mine
California
Unconfirmed Chromium
Historical mapped workings available
Burnett
California
Unconfirmed Chromium
Historical mapped workings available
Butler Estate Mine
California
Unconfirmed Chromium
Historical mapped workings available
Cachuma Chrome Mine
California
Unconfirmed Chromium
Historical mapped workings available
Camp Eight Claim
California
Unconfirmed Chromium
Historical mapped workings available
Carr and Mefford
California
Unconfirmed Chromium
Documented shaft evidence
Castella
California
Unconfirmed Chromium
Chorro Mine
California
Unconfirmed Chromium
Historical mapped workings available
Chrome Center Claim
California
Unconfirmed Chromium
Chrome Gulch Group
California
Unconfirmed Chromium
Chrome P N
California
Unconfirmed Chromium
Documented adit evidence
Clara H.Mine & Mill
California
Unconfirmed Chromium
Clark Claim
California
Unconfirmed Chromium