HISTORICAL SITES / RESEARCH DIRECTORY

Abandoned mines in California

Find the public record behind a former mining site. Explore reported locations, mined materials and operating history as a starting point for acquisition, reuse or reclamation research.

2,021 matching recordsMSHA snapshot · 2026-10-31

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History means records exist in the imported sources, including older periods. Missing history is not evidence of a clean safety record. Operator and controller names are the last relationships reported in the Mines snapshot; they are not verified current property owners.

Mine / reported locationMaterial / typeReported statusReported relationshipsAvailable history
Big Dreamer Mine And MillMadera, CAMSHA 0402527Tungsten OreSurfaceAbandonedStatus date: 10/23/1980Big Dreamer Mining CompanyReported operatorBig Dreamer Mining CompanyReported controllerNeither history importedView source coverage →
Big DykeKern, CAMSHA 0405079Gold OreSurfaceAbandonedStatus date: 12/03/1990Cascade ExplorationReported operatorWalters GordonReported controllerNeither history importedView source coverage →
Big Four MiningKern, CAMSHA 0404648Silver OreUndergroundAbandonedStatus date: 06/26/1985Big Four Mining CompanyReported operatorYow William P Jr & Jack KleinpeterReported controllerNeither history importedView source coverage →
BIG GUN MININGPlacer, CAMSHA 0400297Dimension Stone NECSurfaceAbandonedStatus date: 04/12/2001Big Gun MiningReported operatorDarron EppersonReported controllerProduction / employmentSafety recordsView source coverage →
Big HornLos Angeles, CAMSHA 0404735Gold OreSurfaceAbandonedStatus date: 05/21/1985A T G CompanyReported operatorSkinner GeneReported controllerNeither history importedView source coverage →
Big Horn MineSan Bernardino, CAMSHA 0404482Gold OreUndergroundAbandonedStatus date: 03/17/1992Siskon Gold CorpReported operatorCenturion Gold Ltd & U S Precious Metals IncReported controllerNeither history importedView source coverage →
Big MamaSiskiyou, CAMSHA 0404603Gold OreSurfaceAbandonedStatus date: 07/24/1985Mc Broom & QuigleyReported operatorMc Broom Henry CReported controllerNeither history importedView source coverage →
Big River Rock CoMendocino, CANear FORT BRAGGMSHA 0402775Construction Sand and GravelSurfaceAbandonedStatus date: 08/20/2018Big River Rock CoReported operatorSean Pyorre; Melvin Pyorre; Patricia PyorreReported controllerProduction / employmentSafety recordsView source coverage →
BIG RIVER ROCK CO.Mendocino, CAMSHA 0405272Crushed, Broken Stone NECSurfaceAbandoned and SealedStatus date: 10/25/2002Big River Rock CompanyReported operatorPatricia Pyorre; Melvin PyorreReported controllerProduction / employmentSafety recordsView source coverage →
Big Rock CreekLos Angeles, CANear Pear BlossomMSHA 0405778Construction Sand and GravelSurfaceAbandonedStatus date: 07/14/2020CalMat CoReported operatorVulcan Materials CompanyReported controllerProduction / employmentSafety recordsView source coverage →
Big Rock Creek PlantLos Angeles, CAMSHA 0404042Construction Sand and GravelSurfaceAbandonedStatus date: 10/23/1979Premier Rock Div Of Ca Portland CemReported operatorPremier Rock Div Of Ca Portland CemReported controllerNeither history importedView source coverage →
Big Rock Creek QuarryKern, CANear MOJAVEMSHA 0405212Construction Sand and GravelSurfaceAbandonedStatus date: 11/08/2007Granite Construction CompanyReported operatorGranite Construction IncReported controllerProduction / employmentSafety recordsView source coverage →
Bihlman Butte RockSutter, CANear LIVE OAKMSHA 0403955Crushed, Broken Stone NECSurfaceAbandonedStatus date: 10/01/2015Bihlman Butte RockReported operatorSusan BihlmanReported controllerProduction / employmentSafety recordsView source coverage →
Billie MineInyo, CANear Furnace CreekMSHA 0404218Misc. Metal Ore NECUndergroundAbandonedStatus date: 11/29/2007American Borate CompanyReported operatorRoscorp Inc; American Borate CorpReported controllerProduction / employmentSafety recordsView source coverage →
Bio GypRiverside, CANear BlytheMSHA 0405763GypsumFacilityAbandonedStatus date: 11/05/2013Bio Gyp LLCReported operatorMike A GalamReported controllerProduction / employmentSafety recordsView source coverage →
Bishop MillInyo, CAMSHA 0404626Gold OreFacilityAbandonedStatus date: 08/29/19890877887 BC LTDReported operatorCMC Metals LtdReported controllerNeither history importedView source coverage →
Bissell MagnesiteKern, CAMSHA 0404388Common Clays NECSurfaceAbandonedStatus date: 10/09/1990California Portland Cement CompanyReported operatorCalmat CompanyReported controllerNeither history importedView source coverage →
Bitterwater QuarrySan Benito, CAMSHA 0404961GypsumSurfaceAbandonedStatus date: 07/27/1990Parsons Ag MineralsReported operatorParsons Ag MineralsReported controllerNeither history importedView source coverage →
B J MineInyo, CANear TronaMSHA 0405091Gold OreSurfaceAbandonedStatus date: 12/26/1990B J V CorpReported operatorBosley JackReported controllerNeither history importedView source coverage →
Black AngelSan Bernardino, CANear BarstowMSHA 0405650Construction Sand and GravelSurfaceAbandonedStatus date: 01/04/2016Empire Rock IncReported operatorStan HouckReported controllerProduction / employmentSafety recordsView source coverage →
Blackburn DamKern, CAMSHA 0405073Construction Sand and GravelSurfaceAbandonedStatus date: 02/10/1990Earl Williams & SonsReported operatorWilliams David MarcusReported controllerNeither history importedView source coverage →
Black Butte CindersShasta, CANear ShingletownMSHA 0405596Crushed, Broken Stone NECSurfaceAbandonedStatus date: 06/30/2025Black Butte CindersReported operatorLorri Ann HacklerReported controllerProduction / employmentSafety recordsView source coverage →
Blackhawk MineSan Bernardino, CAMSHA 0404972Gold OreSurfaceAbandonedStatus date: 04/26/1990Sante Fe Gold Mines IncReported operatorQuinn A RichardReported controllerNeither history importedView source coverage →
Black Rock MineMono, CAMSHA 0404239Tungsten OreUndergroundAbandonedStatus date: 05/22/1979Koppen Mining Construction CorpReported operatorKoppen Eckhardt MReported controllerNeither history importedView source coverage →
Blacksprings Clay PitInyo, CAMSHA 0405059Common Clays NECSurfaceAbandonedStatus date: 12/10/1991Blacksprings Clay CompanyReported operatorDodge William & Carl MedfordReported controllerNeither history importedView source coverage →
Blackstone MineCalaveras, CAMSHA 0404064Gold OreUndergroundAbandonedStatus date: 02/02/1978Richard Chilson OwnerReported operatorRichard Chilson OwnerReported controllerNeither history importedView source coverage →
Blackstone MineAmador, CAMSHA 0404488Gold OreUndergroundAbandonedStatus date: 02/23/1988U S Gold Mines IncReported operatorU S Gold Mines IncReported controllerNeither history importedView source coverage →
Blackstone Pit & MillMadera, CANear maderaMSHA 0401966Construction Sand and GravelSurfaceAbandonedStatus date: 02/29/2004Calaveras Materials IncReported operatorMartin Marietta Materials IncReported controllerProduction / employmentSafety recordsView source coverage →
Blanchard Portable 1Alpine, CAMSHA 0405101Crushed, Broken Stone NECSurfaceAbandonedStatus date: 09/11/1991Barry Blanchard IncReported operatorBlanchard BarryReported controllerNeither history importedView source coverage →
Blazing Star MillCalaveras, CAMSHA 0404242Gold OreFacilityAbandonedStatus date: 10/29/1987Gold Rock Industries LtdReported operatorLee ClarrieReported controllerNeither history importedView source coverage →

Take the research further

Acquisition & reuse

Use the mine name and reported location to investigate county parcel and title records, mineral rights, access and planning constraints. MSHA mailing addresses are addresses of record and may not locate the mine. Confirm the parcel and current ownership separately.

EPA mine-site redevelopment primer ↗

Reclamation projects

Check official reclamation inventories and state or tribal programmes for documented hazards, project status and programme criteria. A matching name or an MSHA abandoned status alone does not confirm a programme match.

OSMRE abandoned mine land programme ↗

Source: MSHA public datasets. Production history checks quarterly and annual mine production/employment records. Safety history checks violations, inspections and accident reports; other source coverage is available on each mine profile.