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
LOMPOC PLANTSan Luis Obispo, CAMSHA 0402846Misc. Nonmetallic Mnls. NECFacilityAbandonedStatus date: 08/27/1999Grefco Minerals IncReported operatorDicalite Management Group LLCReported controllerProduction / employmentView source coverage →
Lompoc QuarrySanta Barbara, CAMSHA 0400248Crushed, Broken Limestone NECSurfaceAbandonedStatus date: 08/10/1978Schmidt Construction IncReported operatorSchmidt NancyReported controllerNeither history importedView source coverage →
Lone Oak Rock & SandSan Luis Obispo, CAMSHA 0405072Construction Sand and GravelSurfaceAbandonedStatus date: 03/30/1994Lone Oak Rock & SandReported operatorHolstine RonReported controllerNeither history importedView source coverage →
Lone Pine Pit & MillInyo, CAMSHA 0402177Construction Sand and GravelSurfaceAbandonedStatus date: 10/15/1993Lone Pine Sand & GravelReported operatorBonnefin AlbertReported controllerNeither history importedView source coverage →
LONE WOLFNevada, CAMSHA 0405344Gold OreUndergroundAbandonedStatus date: 09/24/1998Charles K SmithReported operatorCharles K SmithReported controllerNeither history importedView source coverage →
LONG BAR PITYuba, CANear Browns ValleyMSHA 0403862Construction Sand and GravelSurfaceAbandonedStatus date: 03/31/2004Dan Garcia Sand & GravelReported operatorDan GarciaReported controllerProduction / employmentSafety recordsView source coverage →
Long DaveVentura, CAMSHA 0404344Gold OreUndergroundAbandonedStatus date: 08/18/1982Long Dave EnterprisesReported operatorRogers J DReported controllerNeither history importedView source coverage →
Longpoint PlacerSiskiyou, CAMSHA 0404509Gold OreSurfaceAbandonedStatus date: 10/09/1981Middle Earth MiningReported operatorM RobinsonReported controllerNeither history importedView source coverage →
Long Valley PozzolanLassen, CANear DoyleMSHA 0405700Crushed, Broken Stone NECSurfaceAbandonedStatus date: 04/21/2014Western Pozzolan CorporationReported operatorWestern Pozzolan CorporationReported controllerProduction / employmentSafety recordsView source coverage →
Loop Ranch Limestone QuarryKern, CANear bakersfieldMSHA 0405655Crushed, Broken Limestone NECSurfaceAbandonedStatus date: 01/07/2010H Lima Co Inc.Reported operatorMike LimaReported controllerProduction / employmentSafety recordsView source coverage →
Lopez Road QuarrySolano, CAMSHA 0403774Crushed, Broken Stone NECSurfaceAbandonedStatus date: 07/21/1980Fred ChisamoreReported operatorFred ChisamoreReported controllerNeither history importedView source coverage →
Lopez Rock QuarryDel Norte, CANear Crescent CityMSHA 0405830Crushed, Broken Stone NECSurfaceAbandonedStatus date: 12/01/2014HW3 LLCReported operatorHenry Westbrook IIIReported controllerProduction / employmentSafety recordsView source coverage →
Lost Hills MinesKern, CAMSHA 0400927GypsumSurfaceAbandonedStatus date: 01/15/1986Fannin-Superior Gypsum Company IncReported operatorBarksdale Bill-Sidney L PayneReported controllerNeither history importedView source coverage →
Lot 232 PitAmador, CAMSHA 0403892Misc. Nonmetallic Mnls. NECSurfaceAbandonedStatus date: 10/10/1979Interpace CorpReported operatorJon RhineReported controllerNeither history importedView source coverage →
Lotus Pit And MillEl Dorado, CAMSHA 0401844Construction Sand and GravelSurfaceAbandonedStatus date: 08/09/1982Lotus Aggregates IncReported operatorHenningsen NormanReported controllerNeither history importedView source coverage →
Lovelady-1San Bernardino, CANear HighlandMSHA 0405513Construction Sand and GravelSurfaceAbandonedStatus date: 02/28/2011Lovelady Trucking & Material IncReported operatorMark T LoveladyReported controllerProduction / employmentSafety recordsView source coverage →
Lower Emma MineButte, CAMSHA 0405225Gold OreUndergroundAbandonedStatus date: 03/08/1996Ddmj EnterprisesReported operatorLedbetter G Darrell - Carl PullenReported controllerNeither history importedView source coverage →
Lucerne ValleySan Bernardino, CANear Lucerne ValleyMSHA 0405693Construction Sand and GravelSurfaceAbandonedStatus date: 05/01/2018Robertson'sReported operatorRRM Development Corporation; Mitsubishi CorpReported controllerProduction / employmentSafety recordsView source coverage →
LUCKY 7 PITButte, CANear OrovilleMSHA 0405086Construction Sand and GravelSurfaceAbandonedStatus date: 06/05/2026Branson Enterprise IncReported operatorMatthew James BransonReported controllerProduction / employmentSafety recordsView source coverage →
Lucky Chance MinePlumas, CAMSHA 0404375Gold OreUndergroundAbandonedStatus date: 10/01/1982Lucky Chance MineReported operatorRoper VirgilReported controllerNeither history importedView source coverage →
Lucky Stars MineTulare, CAMSHA 0404272Misc. Nonmetallic Mnls. NECUndergroundAbandonedStatus date: 05/22/1981Metaline Industries IncReported operatorMetaline Industries IncReported controllerNeither history importedView source coverage →
Lucky StrikeMendocino, CAMSHA 0404751Construction Sand and GravelSurfaceAbandonedStatus date: 02/14/1986Rand Rock CompanyReported operatorRand Rock CompanyReported controllerNeither history importedView source coverage →
Lucy B No 3Kern, CAMSHA 0404226Tungsten OreUndergroundAbandonedStatus date: 01/29/1981P G C S LtdReported operatorOsborn LloydReported controllerNeither history importedView source coverage →
LW Hall Co Inc DBA Oak Run QuarryShasta, CANear Oak RunMSHA 0405228Common ShaleSurfaceAbandonedStatus date: 07/23/2008Cobalt CrushingReported operatorLee W HallReported controllerProduction / employmentSafety recordsView source coverage →
LYNCH PITSan Diego, CAMSHA 0405176Crushed, Broken GraniteSurfaceAbandonedStatus date: 05/12/1997Robert L Lynch TruckingReported operatorLynch Robert LReported controllerNeither history importedView source coverage →
Lytle CreekSan Bernardino, CAMSHA 0401886Construction Sand and GravelSurfaceAbandonedStatus date: 06/16/1993Owl Rock ProductsReported operatorMitsubishi CorpReported controllerNeither history importedView source coverage →
Lytle CreekSan Bernardino, CAMSHA 0405177Construction Sand and GravelSurfaceAbandonedStatus date: 11/02/1992Osborn Materials & Processing CompanyReported operatorOsborn Materials & Processing CompanyReported controllerNeither history importedView source coverage →
Lytle Creek/S-5 ExtecSan Bernardino, CANear RiversideMSHA 0405486Construction Sand and GravelSurfaceAbandonedStatus date: 12/30/2011Barney Northcote IncReported operatorBarney R NorthcoteReported controllerProduction / employmentSafety recordsView source coverage →
Madison Sand & GravelYolo, CANear MADISONMSHA 0401848Construction Sand and GravelSurfaceAbandonedStatus date: 04/16/2020Syar Industries IncReported operatorJames M SyarReported controllerProduction / employmentSafety recordsView source coverage →
Main Pit & MillDel Norte, CAMSHA 0401923Construction Sand and GravelSurfaceAbandonedStatus date: 08/06/1980Rellim Redwood CoReported operatorRellim Redwood CoReported 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.