HISTORICAL SITES / RESEARCH DIRECTORY
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.
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 location | Material / type | Reported status | Reported relationships | Available history |
|---|---|---|---|---|
| Modoc Mine Open PitInyo, CAMSHA 0404551 | Silver OreSurface | AbandonedStatus date: 12/13/1983 | Panamint Mining Co & Defense Resources CoReported operatorWayne DoughertyReported controller | Neither history importedView source coverage → |
| Mojave QuarryKern, CAMSHA 0404350 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 11/02/1988 | California Portland Cement CompanyReported operatorCalmat CompanyReported controller | Neither history importedView source coverage → |
| Mokelumne Hill Pit And MillCalaveras, CAMSHA 0402084 | Construction Sand and GravelSurface | AbandonedStatus date: 10/04/1978 | George Reed IncReported operatorReed Family CompaniesReported controller | Neither history importedView source coverage → |
| Monarch QuarriesKern, CAMSHA 0404315 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 06/26/1985 | Monarch QuarriesReported operatorMonarch QuarriesReported controller | Neither history importedView source coverage → |
| Monarch QuarryKern, CANear TehachapiMSHA 0405749 | Construction Sand and GravelSurface | AbandonedStatus date: 05/16/2008 | Carlton Global Resources LLCReported operatorSelect Resources; Main Capital Partners LLCReported controller | Production / employmentView source coverage → |
| MONATGUE PLANTSiskiyou, CAMSHA 0404679 | Construction Sand and GravelSurface | AbandonedStatus date: 04/11/2001 | Contractors Sand & Gravel Supply IncReported operatorEric Schoonmaker; Madelyn SchoonmakerReported controller | Production / employmentSafety recordsView source coverage → |
| Monetta BeeSiskiyou, CAMSHA 0404694 | Gold OreSurface | AbandonedStatus date: 10/24/1984 | Mitchell-ChristensenReported operatorMitchell-ChristensenReported controller | Neither history importedView source coverage → |
| Mongolian PitInyo, CAMSHA 0404264 | TalcSurface | AbandonedStatus date: 05/21/1985 | Pfizer IncReported operatorMinerals Technologies IncReported controller | Neither history importedView source coverage → |
| Montague Rock ProductsSiskiyou, CAMSHA 0404729 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 04/07/1986 | Montague Rock ProductsReported operatorMontague Rock ProductsReported controller | Neither history importedView source coverage → |
| Montecito MillInyo, CAMSHA 0402871 | Tungsten OreFacility | AbandonedStatus date: 12/01/1978 | Montecito Mining CompanyReported operatorMontecito Mining CompanyReported controller | Neither history importedView source coverage → |
| Montezuma Sand & GravelTuolumne, CANear Jamestown, CAMSHA 0405165 | Construction Sand and GravelSurface | AbandonedStatus date: 03/13/2025 | Sierra Rock ProductsReported operatorJames D HatlerReported controller | Production / employmentSafety recordsView source coverage → |
| MOORE QUARTZSierra, CAMSHA 0405295 | Gold OreUnderground | AbandonedStatus date: 04/09/1997 | Eagle Mining & EngineeringReported operatorMale George E & Thomas W SmithReported controller | Neither history importedView source coverage → |
| Moreno Valley Sand & GravelRiverside, CAMSHA 0403648 | Construction Sand and GravelSurface | AbandonedStatus date: 07/05/1994 | Triangle Rock Products IncReported operatorVulcan Materials CompanyReported controller | Neither history importedView source coverage → |
| Morin & Morin ClaimsPlumas, CAMSHA 0404430 | Gold OreSurface | AbandonedStatus date: 10/01/1982 | Seneca Mining & Developing CompanyReported operatorCrowe Lee LReported controller | Neither history importedView source coverage → |
| Morisson MineImperial, CAMSHA 0404368 | Gold OreSurface | AbandonedStatus date: 04/12/1982 | Mineral Management IncReported operatorMineral Management IncReported controller | Neither history importedView source coverage → |
| Morning Glory MineSierra, CAMSHA 0404311 | Gold OreUnderground | AbandonedStatus date: 05/25/1982 | Morning Glory Gold MinesReported operatorMichael M MillerReported controller | Neither history importedView source coverage → |
| Morning Star MineSan Bernardino, CAMSHA 0404380 | Construction Sand and GravelUnderground | AbandonedStatus date: 07/10/1984 | Vanderbilt Gold CorpReported operatorVanderbilt Gold CorpReported controller | Neither history importedView source coverage → |
| MORNING STAR MINESan Bernardino, CAMSHA 0404791 | Gold OreSurface | AbandonedStatus date: 09/25/2000 | Vanderbilt Gold CorpReported operatorVanderbilt Gold CorpReported controller | Neither history importedView source coverage → |
| MORONGO PLANTRiverside, CAMSHA 0404826 | Construction Sand and GravelSurface | AbandonedStatus date: 08/07/1997 | Triangle Rock Products IncReported operatorVulcan Materials CompanyReported controller | Neither history importedView source coverage → |
| Morris Sand PitContra Costa, CAMSHA 0401863 | Construction Sand and GravelSurface | AbandonedStatus date: 04/09/1981 | William G Mc Cullough CompanyReported operatorWilliam G Mc Cullough CompanyReported controller | Neither history importedView source coverage → |
| Morro Bay PlantSan Luis Obispo, CAMSHA 0403834 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 06/19/1979 | Pioneer Transit Mix IncReported operatorPioneer Transit Mix IncReported controller | Neither history importedView source coverage → |
| Morro Bay PlantSan Luis Obispo, CAMSHA 0404232 | CementSurface | AbandonedStatus date: 06/19/1979 | Pioneer Transit Mix IncReported operatorPioneer Transit Mix IncReported controller | Neither history importedView source coverage → |
| Morro Rock & SandSan Luis Obispo, CAMSHA 0401864 | Construction Sand and GravelSurface | AbandonedStatus date: 03/08/1996 | Morro Rock & Sand IncReported operatorKalin Edward F JrReported controller | Neither history importedView source coverage → |
| Mossdale Rd LathropSan Joaquin, CANear LathropMSHA 0405483 | Sand, Industrial NECSurface | AbandonedStatus date: 10/16/2003 | F T G Construction Materials IncReported operatorAnthony J AlegreReported controller | Production / employmentSafety recordsView source coverage → |
| MOUNTAIN AGGREGATES MARIN FACILIEl Dorado, CAMSHA 0405376 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 10/05/2001 | Mountain Aggregates LlcReported operatorChuck Jeffries; Red EmmersonReported controller | Production / employmentSafety recordsView source coverage → |
| Mountain Gate Gravel QuarryPlacer, CAMSHA 0404253 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 08/09/1982 | Mountain Gate-Wacker CompanyReported operatorMountain Gate-Wacker CompanyReported controller | Neither history importedView source coverage → |
| MOUNTAIN GATE LIMESTONE QUARRYShasta, CAMSHA 0404960 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 10/22/2001 | Stimpel Wiebelhaus AssociatesReported operatorRichard J StimpelReported controller | Production / employmentSafety recordsView source coverage → |
| Mountain Lily MineSan Diego, CANear Sunshine SummitMSHA 0405900 | GemstonesUnderground | AbandonedStatus date: 01/01/2019 | RPL Mining Limited LLCReported operatorWilliam LarsonReported controller | Production / employmentSafety recordsView source coverage → |
| Mountain View Plant San Bernardino, CANear UplandMSHA 0401693 | Construction Sand and GravelSurface | AbandonedStatus date: 01/01/2014 | Holliday Rock Company IncReported operatorPenny J HollidayReported controller | Production / employmentSafety recordsView source coverage → |
| Mt Minerals MainTrinity, CAMSHA 0404476 | Gold OreSurface | AbandonedStatus date: 07/30/1982 | Seros MiningReported operatorSeros Nicholas JReported controller | Neither history importedView source coverage → |
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 ↗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.