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 |
|---|---|---|---|---|
| PowerScreen 2100San Bernardino, CANear MenifeeMSHA 0405289 | Construction Sand and GravelSurface | AbandonedStatus date: 08/01/2025 | North County Sand & Gravel IncReported operatorMike J LaPagliaReported controller | Production / employmentSafety recordsView source coverage → |
| Powerscreen PlantSan Mateo, CANear South San FranciscoMSHA 0405542 | Construction Sand and GravelSurface | AbandonedStatus date: 12/02/2002 | Ryan Engineering, Inc.Reported operatorMarty RyanReported controller | Production / employmentView source coverage → |
| PradoRiverside, CAMSHA 0401882 | Construction Sand and GravelSurface | AbandonedStatus date: 02/25/1994 | Owl Rock ProductsReported operatorMitsubishi CorpReported controller | Neither history importedView source coverage → |
| PRADORiverside, CANear CoronaMSHA 0405087 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2018 | FST Sand & Gravel Inc.Reported operatorFrank SmithReported controller | Production / employmentSafety recordsView source coverage → |
| Prairie CitySacramento, CANear Prairie CityMSHA 0405501 | Construction Sand and GravelSurface | AbandonedStatus date: 10/06/2011 | Teichert AggregatesReported operatorTeichert IncReported controller | Production / employmentSafety recordsView source coverage → |
| PrattcoMonterey, CAMSHA 0401899 | Construction Sand and GravelSurface | AbandonedStatus date: 03/12/1987 | Lone Star Industries IncReported operatorLone Star Industries IncReported controller | Neither history importedView source coverage → |
| Precision ProductsLos Angeles, CAMSHA 0404467 | Common Clays NECSurface | AbandonedStatus date: 09/16/1986 | Precision Lumber CompanyReported operatorSpoo R L & A WReported controller | Neither history importedView source coverage → |
| Premier Track300 CrusherMendocino, CANear GarbervilleMSHA 0405923 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 12/02/2019 | Laytonville RockReported operatorShawn T StudebakerReported controller | Safety recordsView source coverage → |
| Preparation PlantAmador, CAMSHA 0400659 | Misc. Nonmetallic Mnls. NECFacility | AbandonedStatus date: 01/02/1991 | American Lignite Products CompanyReported operatorAsea Brown Boveri Ltd (ABB)Reported controller | Neither history importedView source coverage → |
| Preparation PlantAmador, CANear IoneMSHA 0405125 | Coal (Lignite)Facility | AbandonedStatus date: 07/28/1999 | Jackson Valley Energy Partners L PReported operatorNrg Energy Jackson Valley I Inc-Volkar/Coombs PartReported controller | Neither history importedView source coverage → |
| Primrose MillSierra, CAMSHA 0404623 | Gold OreFacility | AbandonedStatus date: 03/22/1984 | Sierra Nevada Gold IncReported operatorLee MarkReported controller | Neither history importedView source coverage → |
| Princeton LandsMariposa, CAMSHA 0404527 | Gold OreUnderground | AbandonedStatus date: 05/26/1982 | Western States Mining Company IncReported operatorJohn E NewmanReported controller | Neither history importedView source coverage → |
| Princeton Ranch PitColusa, CAMSHA 0404316 | Construction Sand and GravelSurface | AbandonedStatus date: 04/02/1981 | Princeton RanchReported operatorPrinceton RanchReported controller | Neither history importedView source coverage → |
| PRM SAND COMPANYTulare, CAMSHA 0405174 | Construction Sand and GravelSurface | AbandonedStatus date: 03/25/1998 | Porterville Ready Mix IncReported operatorBill Ray JonesReported controller | Neither history importedView source coverage → |
| Progressive MineFresno, CAMSHA 0404596 | Gold OreSurface | AbandonedStatus date: 07/13/1983 | Homer & Jerry GaddyReported operatorGaddy JerryReported controller | Neither history importedView source coverage → |
| Pruett Desert SupplyKern, CAMSHA 0405105 | Dimension Stone NECSurface | AbandonedStatus date: 03/18/1994 | Pruett Desert Supply & Service CompanyReported operatorPruett Annyce CReported controller | Neither history importedView source coverage → |
| Putah Creek PlantLake, CAMSHA 0403210 | Construction Sand and GravelSurface | AbandonedStatus date: 01/01/1989 | Hitchcock Brothers CindersReported operatorLawrence R Hitchcock; John HitchcockReported controller | Neither history importedView source coverage → |
| P V CLAYKern, CANear kernMSHA 0405399 | Clay, Ceramic, Refractory Mnls.Surface | AbandonedStatus date: 11/16/2001 | Protech Minerals, LLCReported operatorPressed Down, Inc; Terry SuzukiReported controller | Production / employmentSafety recordsView source coverage → |
| P V Clay MineKern, CAMSHA 0400534 | Common Clays NECSurface | AbandonedStatus date: 06/11/1985 | Pfizer IncReported operatorMinerals Technologies IncReported controller | Neither history importedView source coverage → |
| Pyramid Mineral ResourcesTrinity, CAMSHA 0404383 | Gold OreUnderground | AbandonedStatus date: 07/30/1982 | Rainbow Mineral ResourcesReported operatorRainbow Mineral ResourcesReported controller | Neither history importedView source coverage → |
| Pyrite QuarryRiverside, CANear RiversideMSHA 0404680 | Crushed, Broken GraniteSurface | AbandonedStatus date: 08/20/2013 | Stone Valley Materials, LLCReported operatorNatasha Van VeldhuizenReported controller | Production / employmentSafety recordsView source coverage → |
| PYRITE QUARRYRiverside, CAMSHA 0405310 | Construction Sand and GravelSurface | AbandonedStatus date: 06/18/1997 | Vance CorpReported operatorCalvin E VanceReported controller | Neither history importedView source coverage → |
| Quail MineMariposa, CAMSHA 0404605 | Gold OreFacility | AbandonedStatus date: 09/14/1982 | Southwind Texas Mining CorpReported operatorSouthwind Texas Mining CorpReported controller | Neither history importedView source coverage → |
| Quality Materials (Rancho Plant)San Bernardino, CANear RubidouxMSHA 0405475 | Construction Sand and GravelSurface | AbandonedStatus date: 05/16/2009 | Quality MaterialsReported operatorDave BeckReported controller | Production / employmentSafety recordsView source coverage → |
| Quandt Borrow PitRiverside, CAMSHA 0404650 | Construction Sand and GravelSurface | AbandonedStatus date: 06/13/1991 | Quandt MaterialsReported operatorQuandt MaterialsReported controller | Neither history importedView source coverage → |
| Quarry #4Contra Costa, CAMSHA 0404732 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 01/02/1992 | American Rock & Asphalt IncReported operatorSam Johnson; Ralph JohnsonReported controller | Neither history importedView source coverage → |
| Quarry DivisionLos Angeles, CAMSHA 0404779 | Construction Sand and GravelSurface | AbandonedStatus date: 01/10/1991 | Three D Service CompanyReported operatorClark Charles LReported controller | Neither history importedView source coverage → |
| Quarry-Quarry PlantSan Bernardino, CAMSHA 0404230 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 04/01/1988 | Southwestern Portland Cement CompanyReported operatorSouthdown IncReported controller | Neither history importedView source coverage → |
| Quatal Canyon Gypsum QuarryKern, CAMSHA 0404235 | GypsumSurface | AbandonedStatus date: 08/05/1988 | Calaveras Portland Cement CompanyReported operatorCimenteries Cbr CementbedrijvenReported controller | Neither history importedView source coverage → |
| Quintana Gypsum CompanyRiverside, CAMSHA 0404276 | GypsumSurface | AbandonedStatus date: 03/31/1989 | Quintana Gypsum CompanyReported operatorRobertson Corbin J JrReported 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.