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
Yuba-Lowe VentureYuba, CAMSHA 0404429Gold OreSurfaceAbandonedStatus date: 12/08/1981Yuba-Lowe VentureReported operatorYuba Natural Resources Inc-Lamon Construction Et AReported controllerNeither history importedView source coverage →
Yuba No 1 & No 2 UndergroundSierra, CAMSHA 0404593Gold OreUndergroundAbandonedStatus date: 07/14/1982Neocene ExplorationsReported operatorRichard Clarence J & Joan EReported controllerNeither history importedView source coverage →
Yuba River Sand PlantYuba, CAMSHA 0402004Construction Sand and GravelSurfaceAbandonedStatus date: 05/30/1980Yuba River Sand CoReported operatorYuba River Sand CoReported controllerNeither history importedView source coverage →
Yuba SilicaYuba, CAMSHA 0404768Construction Sand and GravelSurfaceAbandonedStatus date: 12/11/1989Yuba Silica IncReported operatorYuba Natural Resources IncReported controllerNeither history importedView source coverage →
ZacaAlpine, CAMSHA 0404444Silver OreSurfaceAbandonedStatus date: 08/01/1990Western States Minerals CorpReported operatorW S Holding CorpReported controllerNeither history importedView source coverage →
Zaca Mine & MillAlpine, CAMSHA 0401337Silver OreUndergroundAbandonedStatus date: 10/09/1981Claude B LovestedtReported operatorLovestedt Claude BReported controllerNeither history importedView source coverage →
Zamaroni QuarrySonoma, CAMSHA 0402381Crushed, Broken Stone NECSurfaceAbandonedStatus date: 04/10/1996Zamaroni Quarry IncReported operatorZamaroni LouisReported controllerNeither history importedView source coverage →
ZendaKern, CAMSHA 0405061Gold OreSurfaceAbandonedStatus date: 06/27/1990Equinox Resources IncReported operatorEquinox Resources LtdReported controllerNeither history importedView source coverage →
Zenia PitTrinity, CAMSHA 0404055Construction Sand and GravelSurfaceAbandonedStatus date: 04/30/1979B & C Sand & Gravel CoReported operatorB & C Sand & Gravel CoReported controllerNeither history importedView source coverage →
ZNZYuba, CANear FallonMSHA 2602779Construction Sand and GravelSurfaceAbandonedStatus date: 01/05/2017Advanced Carbonate Technologies, LLCReported operatorRandy MesserReported controllerProduction / employmentView source coverage →
ZodiacInyo, CAMSHA 0404815PumiceSurfaceAbandonedStatus date: 06/19/1990Zodiac Investment IncReported operatorProck P EldonReported 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.