Abandoned Mines in California
14,521Abandoned & Historical
Abandoned Mining in California
Federal databases record 14,521 abandoned, sealed, and historically closed mine locations in California. These include mines officially abandoned under MSHA oversight and past producers documented in the USGS Mineral Resources Data System. Abandoned mines are a legacy of centuries of mineral extraction and can pose ongoing environmental and safety concerns for nearby communities.
Safety Warning: Abandoned mines are extremely dangerous. Hazards include cave-ins, toxic gases, flooded shafts, unstable ground, and hidden vertical drops. Never enter an abandoned mine. Many are on private property. If you discover an unsecured abandoned mine, report it to your state mining agency.
Top Counties
| County | Abandoned/Historical |
|---|---|
| San Bernardino County | 1,343 |
| Calaveras County | 979 |
| Nevada County | 977 |
| Siskiyou County | 929 |
| Kern County | 745 |
| Inyo County | 731 |
| Mariposa County | 588 |
| El Dorado County | 584 |
| Placer County | 581 |
| Trinity County | 572 |
| Riverside County | 557 |
| Sierra County | 491 |
| San Diego County | 449 |
| Shasta County | 429 |
| Los Angeles County | 406 |
| Tuolumne County | 343 |
| Butte County | 330 |
| Mono County | 280 |
| Plumas County | 270 |
| Amador County | 255 |
Abandoned Mine Sites
| Mine | County | Commodity | Status | Source |
|---|---|---|---|---|
| #2 Portable | Riverside | Crushed, Broken Stone NEC | Abandoned | MSHA |
| 1000 Springs Pit | Lassen | Sand, Industrial NEC | Abandoned | MSHA |
| 104 Feldspar Quarry | Kern | Feldspar | Past Producer | MRDS |
| 107 Limestone Quarry | Kern | Limestone, General | Past Producer | MRDS |
| 107 Shale Quarry | Kern | Limestone, General | Past Producer | MRDS |
| 3a Limestone Quarry | Kern | Limestone, General | Past Producer | MRDS |
| 3m Corona Quarry | Riverside | Stone, Crushed/Broken | Past Producer | MRDS |
| 6 Mine | Riverside | Kaolin | Past Producer | MRDS |
| 7/11 Materials - Adams Pit | Inyo | Construction Sand and Gravel | Abandoned | MSHA |
| 7/11 Materials Inc-Robie Ranch | Calaveras | Construction Sand and Gravel | Abandoned | MSHA |
| 8 West Quarry | Kern | Iron | Past Producer | MRDS |
| 88 Quartz | Placer | Gold | Past Producer | MRDS |
| A & B Native Son Lode | Nevada | Gold | Past Producer | MRDS |
| A & B Reeves | Amador | Gold | Past Producer | MRDS |
| A C Collins | Shasta | Gold | Past Producer | MRDS |
| A Plus Materials (brown Sand) | San Joaquin | Construction Sand and Gravel | Abandoned | MSHA |
| A-1 Grit Co | Los Angeles | Misc. Nonmetallic Mnls. NEC | Abandoned | MSHA |
| A-J Burkhart | Mariposa | Gold | Past Producer | MRDS |
| A. B. C. Mine | San Diego | Semiprecious Gemstone | Past Producer | MRDS |
| A. C. Smith | Mariposa | Copper | Past Producer | MRDS |
| A. R. Folsom Property | Calaveras | Gold | Past Producer | MRDS |
| A.j.ringer Ranch | Amador | Gold | Past Producer | MRDS |
| A.m.e. Quarry | San Diego | Stone, Crushed/Broken | Past Producer | MRDS |
| Abbey Mine | Madera | Gold | Past Producer | MRDS |
| Abbie L. | Tuolumne | Gold | Past Producer | MRDS |
| Abbott | Lake | Mercury | Past Producer | MRDS |
| Abbott | Trinity | Gold | Past Producer | MRDS |
| Abc Placer | Siskiyou | Gold | Past Producer | MRDS |
| Abdellah | Calaveras | Gold | Past Producer | MRDS |
| Abers | Siskiyou | Gold | Past Producer | MRDS |
| Able | Calaveras | Gold | Past Producer | MRDS |
| Abrams | Siskiyou | Gold | Past Producer | MRDS |
| Ace Pit and Mill | Lake | Sand and Gravel, Construction | Past Producer | MRDS |
| Acme Brick Co. Pit | Los Angeles | Clay | Past Producer | MRDS |
| Acme Mine | San Bernardino | Talc-Soapstone | Past Producer | MRDS |
| Acme Truck Co. Pit No. 1 | San Diego | Stone, Crushed/Broken | Past Producer | MRDS |
| Acme Truck Co., Pit No. 2 | San Diego | Stone, Crushed/Broken | Past Producer | MRDS |
| Adams | Placer | Gold | Past Producer | MRDS |
| Adams Gulch | El Dorado | Gold | Past Producer | MRDS |
| Adams Pit | Inyo | Sand and Gravel, Construction | Past Producer | MRDS |
| Adams Pit | Placer | Gold | Past Producer | MRDS |
| Adams Property | Calaveras | Gold | Past Producer | MRDS |
| Adamson | Inyo | Tungsten | Past Producer | MRDS |
| Addie | Calaveras | Gold | Past Producer | MRDS |
| Adelaide | Siskiyou | Gold | Past Producer | MRDS |
| Adelaide | Calaveras | Gold | Past Producer | MRDS |
| Adelaide | Sierra | Gold | Past Producer | MRDS |
| Adelaide and Anderson | Mariposa | Gold | Past Producer | MRDS |
| Adelanto Tungsten Fields | San Bernardino | Tungsten | Past Producer | MRDS |
| Adelia | Calaveras | Gold | Past Producer | MRDS |
| Adeline | Calaveras | Gold | Past Producer | MRDS |
| Adeline Laura | Siskiyou | Gold | Past Producer | MRDS |
| Adeline Magesite Mine | Tulare | Magnesite | Past Producer | MRDS |
| Adeline Rex | Siskiyou | Gold | Past Producer | MRDS |
| Admiral Dewey | Calaveras | Gold | Past Producer | MRDS |
| Admiral Schley | El Dorado | Gold | Past Producer | MRDS |
| Adoba | Trinity | Gold | Past Producer | MRDS |
| Adobe | Stanislaus | Mercury | Past Producer | MRDS |
| Adobe Canyon Group | Stanislaus | Past Producer | MRDS | |
| Adobe Canyon Group Deposits | Stanislaus | Chromium | Past Producer | MRDS |
| Adobe Creek Quarry | Santa Clara | Stone, Crushed/Broken | Past Producer | MRDS |
| Adobe Ranch | Madera | Gold | Past Producer | MRDS |
| Adrian Alexander | Fresno | Tungsten | Past Producer | MRDS |
| Advance | Alpine | Silver, Gold | Past Producer | MRDS |
| Advance | Siskiyou | Gold | Past Producer | MRDS |
| Advance Consolidated | Shasta | Gold | Past Producer | MRDS |
| Aetna | Napa | Mercury | Past Producer | MRDS |
| Aetna Ledge | Nevada | Gold | Past Producer | MRDS |
| After Thought | Calaveras | Gold | Past Producer | MRDS |
| Afterthought | Shasta | Copper | Past Producer | MRDS |
| Afton Canyon | San Bernardino | Manganese | Past Producer | MRDS |
| Agnes May | Trinity | Gold | Past Producer | MRDS |
| Agricultural Minerals & Fertilizer | Merced | Gypsum-Anhydrite | Past Producer | MRDS |
| Agua Fria Canyon | Mariposa | Gold | Past Producer | MRDS |
| Aguanga Pit | Riverside | Sand and Gravel, Construction | Past Producer | MRDS |
| Aguanga Plant | Riverside | Construction Sand and Gravel | Abandoned | MSHA |
| Aguereberry | Inyo | Lead, Zinc, Silver | Past Producer | MRDS |
| Ah Wai Drift | Mariposa | Gold | Past Producer | MRDS |
| Aho Mine | Sonoma | Past Producer | MRDS | |
| Ailene | Siskiyou | Gold | Past Producer | MRDS |
| Airola | Calaveras | Gold | Past Producer | MRDS |
| Ajax | Nevada | Gold | Past Producer | MRDS |
| Ajax | Shasta | Gold | Past Producer | MRDS |
| Ajax | Monterey | Gold | Past Producer | MRDS |
| Akers Group | Shasta | Copper | Past Producer | MRDS |
| Akoz | Mariposa | Zinc | Past Producer | MRDS |
| Al Mono | Mono | Gold, Silver, Lead | Past Producer | MRDS |
| Al Mono Mine | Mono | Gold | Past Producer | MRDS |
| Al Toland | Shasta | Gold | Past Producer | MRDS |
| Ala Mountain Mine | Santa Clara | Past Producer | MRDS | |
| Alabama | Placer | Gold | Past Producer | MRDS |
| Alabama | Tuolumne | Gold | Past Producer | MRDS |
| Alabama Express, Golden Rod & Gold Dust | El Dorado | Gold | Past Producer | MRDS |
| Alabama-California Mine | Placer | Silver, Gold | Past Producer | MRDS |
| Alabama-Mohawk Mine | Inyo | Gold | Past Producer | MRDS |
| Alabaster Cave | El Dorado | Copper | Past Producer | MRDS |
| Aladdin | Mariposa | Gold | Past Producer | MRDS |
| Alameda | Mariposa | Gold | Past Producer | MRDS |
| Alameda | Placer | Gold | Past Producer | MRDS |
| Alameda | Tuolumne | Gold | Past Producer | MRDS |
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