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

CountyAbandoned/Historical
San Bernardino County1,343
Calaveras County979
Nevada County977
Siskiyou County929
Kern County745
Inyo County731
Mariposa County588
El Dorado County584
Placer County581
Trinity County572
Riverside County557
Sierra County491
San Diego County449
Shasta County429
Los Angeles County406
Tuolumne County343
Butte County330
Mono County280
Plumas County270
Amador County255

Abandoned Mine Sites

MineCountyCommodityStatusSource
#2 PortableRiversideCrushed, Broken Stone NECAbandonedMSHA
1000 Springs PitLassenSand, Industrial NECAbandonedMSHA
104 Feldspar QuarryKernFeldsparPast ProducerMRDS
107 Limestone QuarryKernLimestone, GeneralPast ProducerMRDS
107 Shale QuarryKernLimestone, GeneralPast ProducerMRDS
3a Limestone QuarryKernLimestone, GeneralPast ProducerMRDS
3m Corona QuarryRiversideStone, Crushed/BrokenPast ProducerMRDS
6 MineRiversideKaolinPast ProducerMRDS
7/11 Materials - Adams PitInyoConstruction Sand and GravelAbandonedMSHA
7/11 Materials Inc-Robie RanchCalaverasConstruction Sand and GravelAbandonedMSHA
8 West QuarryKernIronPast ProducerMRDS
88 QuartzPlacerGoldPast ProducerMRDS
A & B Native Son LodeNevadaGoldPast ProducerMRDS
A & B ReevesAmadorGoldPast ProducerMRDS
A C CollinsShastaGoldPast ProducerMRDS
A Plus Materials (brown Sand)San JoaquinConstruction Sand and GravelAbandonedMSHA
A-1 Grit CoLos AngelesMisc. Nonmetallic Mnls. NECAbandonedMSHA
A-J BurkhartMariposaGoldPast ProducerMRDS
A. B. C. MineSan DiegoSemiprecious GemstonePast ProducerMRDS
A. C. SmithMariposaCopperPast ProducerMRDS
A. R. Folsom PropertyCalaverasGoldPast ProducerMRDS
A.j.ringer RanchAmadorGoldPast ProducerMRDS
A.m.e. QuarrySan DiegoStone, Crushed/BrokenPast ProducerMRDS
Abbey MineMaderaGoldPast ProducerMRDS
Abbie L.TuolumneGoldPast ProducerMRDS
AbbottLakeMercuryPast ProducerMRDS
AbbottTrinityGoldPast ProducerMRDS
Abc PlacerSiskiyouGoldPast ProducerMRDS
AbdellahCalaverasGoldPast ProducerMRDS
AbersSiskiyouGoldPast ProducerMRDS
AbleCalaverasGoldPast ProducerMRDS
AbramsSiskiyouGoldPast ProducerMRDS
Ace Pit and MillLakeSand and Gravel, ConstructionPast ProducerMRDS
Acme Brick Co. PitLos AngelesClayPast ProducerMRDS
Acme MineSan BernardinoTalc-SoapstonePast ProducerMRDS
Acme Truck Co. Pit No. 1San DiegoStone, Crushed/BrokenPast ProducerMRDS
Acme Truck Co., Pit No. 2San DiegoStone, Crushed/BrokenPast ProducerMRDS
AdamsPlacerGoldPast ProducerMRDS
Adams GulchEl DoradoGoldPast ProducerMRDS
Adams PitInyoSand and Gravel, ConstructionPast ProducerMRDS
Adams PitPlacerGoldPast ProducerMRDS
Adams PropertyCalaverasGoldPast ProducerMRDS
AdamsonInyoTungstenPast ProducerMRDS
AddieCalaverasGoldPast ProducerMRDS
AdelaideSiskiyouGoldPast ProducerMRDS
AdelaideCalaverasGoldPast ProducerMRDS
AdelaideSierraGoldPast ProducerMRDS
Adelaide and AndersonMariposaGoldPast ProducerMRDS
Adelanto Tungsten FieldsSan BernardinoTungstenPast ProducerMRDS
AdeliaCalaverasGoldPast ProducerMRDS
AdelineCalaverasGoldPast ProducerMRDS
Adeline LauraSiskiyouGoldPast ProducerMRDS
Adeline Magesite MineTulareMagnesitePast ProducerMRDS
Adeline RexSiskiyouGoldPast ProducerMRDS
Admiral DeweyCalaverasGoldPast ProducerMRDS
Admiral SchleyEl DoradoGoldPast ProducerMRDS
AdobaTrinityGoldPast ProducerMRDS
AdobeStanislausMercuryPast ProducerMRDS
Adobe Canyon GroupStanislausPast ProducerMRDS
Adobe Canyon Group DepositsStanislausChromiumPast ProducerMRDS
Adobe Creek QuarrySanta ClaraStone, Crushed/BrokenPast ProducerMRDS
Adobe RanchMaderaGoldPast ProducerMRDS
Adrian AlexanderFresnoTungstenPast ProducerMRDS
AdvanceAlpineSilver, GoldPast ProducerMRDS
AdvanceSiskiyouGoldPast ProducerMRDS
Advance ConsolidatedShastaGoldPast ProducerMRDS
AetnaNapaMercuryPast ProducerMRDS
Aetna LedgeNevadaGoldPast ProducerMRDS
After ThoughtCalaverasGoldPast ProducerMRDS
AfterthoughtShastaCopperPast ProducerMRDS
Afton CanyonSan BernardinoManganesePast ProducerMRDS
Agnes MayTrinityGoldPast ProducerMRDS
Agricultural Minerals & FertilizerMercedGypsum-AnhydritePast ProducerMRDS
Agua Fria CanyonMariposaGoldPast ProducerMRDS
Aguanga PitRiversideSand and Gravel, ConstructionPast ProducerMRDS
Aguanga PlantRiversideConstruction Sand and GravelAbandonedMSHA
AguereberryInyoLead, Zinc, SilverPast ProducerMRDS
Ah Wai DriftMariposaGoldPast ProducerMRDS
Aho MineSonomaPast ProducerMRDS
AileneSiskiyouGoldPast ProducerMRDS
AirolaCalaverasGoldPast ProducerMRDS
AjaxNevadaGoldPast ProducerMRDS
AjaxShastaGoldPast ProducerMRDS
AjaxMontereyGoldPast ProducerMRDS
Akers GroupShastaCopperPast ProducerMRDS
AkozMariposaZincPast ProducerMRDS
Al MonoMonoGold, Silver, LeadPast ProducerMRDS
Al Mono MineMonoGoldPast ProducerMRDS
Al TolandShastaGoldPast ProducerMRDS
Ala Mountain MineSanta ClaraPast ProducerMRDS
AlabamaPlacerGoldPast ProducerMRDS
AlabamaTuolumneGoldPast ProducerMRDS
Alabama Express, Golden Rod & Gold DustEl DoradoGoldPast ProducerMRDS
Alabama-California MinePlacerSilver, GoldPast ProducerMRDS
Alabama-Mohawk MineInyoGoldPast ProducerMRDS
Alabaster CaveEl DoradoCopperPast ProducerMRDS
AladdinMariposaGoldPast ProducerMRDS
AlamedaMariposaGoldPast ProducerMRDS
AlamedaPlacerGoldPast ProducerMRDS
AlamedaTuolumneGoldPast ProducerMRDS

Showing 100 of 14,521 abandoned mine sites. Browse by county above for complete listings.

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