| LOMPOC PLANTSan Luis Obispo, CAMSHA 0402846 | Misc. Nonmetallic Mnls. NECFacility | AbandonedStatus date: 08/27/1999 | Grefco Minerals IncReported operatorDicalite Management Group LLCReported controller | Production / employmentView source coverage → |
| Lompoc QuarrySanta Barbara, CAMSHA 0400248 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 08/10/1978 | Schmidt Construction IncReported operatorSchmidt NancyReported controller | Neither history importedView source coverage → |
| Lone Oak Rock & SandSan Luis Obispo, CAMSHA 0405072 | Construction Sand and GravelSurface | AbandonedStatus date: 03/30/1994 | Lone Oak Rock & SandReported operatorHolstine RonReported controller | Neither history importedView source coverage → |
| Lone Pine Pit & MillInyo, CAMSHA 0402177 | Construction Sand and GravelSurface | AbandonedStatus date: 10/15/1993 | Lone Pine Sand & GravelReported operatorBonnefin AlbertReported controller | Neither history importedView source coverage → |
| LONE WOLFNevada, CAMSHA 0405344 | Gold OreUnderground | AbandonedStatus date: 09/24/1998 | Charles K SmithReported operatorCharles K SmithReported controller | Neither history importedView source coverage → |
| LONG BAR PITYuba, CANear Browns ValleyMSHA 0403862 | Construction Sand and GravelSurface | AbandonedStatus date: 03/31/2004 | Dan Garcia Sand & GravelReported operatorDan GarciaReported controller | Production / employmentSafety recordsView source coverage → |
| Long DaveVentura, CAMSHA 0404344 | Gold OreUnderground | AbandonedStatus date: 08/18/1982 | Long Dave EnterprisesReported operatorRogers J DReported controller | Neither history importedView source coverage → |
| Longpoint PlacerSiskiyou, CAMSHA 0404509 | Gold OreSurface | AbandonedStatus date: 10/09/1981 | Middle Earth MiningReported operatorM RobinsonReported controller | Neither history importedView source coverage → |
| Long Valley PozzolanLassen, CANear DoyleMSHA 0405700 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 04/21/2014 | Western Pozzolan CorporationReported operatorWestern Pozzolan CorporationReported controller | Production / employmentSafety recordsView source coverage → |
| Loop Ranch Limestone QuarryKern, CANear bakersfieldMSHA 0405655 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 01/07/2010 | H Lima Co Inc.Reported operatorMike LimaReported controller | Production / employmentSafety recordsView source coverage → |
| Lopez Road QuarrySolano, CAMSHA 0403774 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 07/21/1980 | Fred ChisamoreReported operatorFred ChisamoreReported controller | Neither history importedView source coverage → |
| Lopez Rock QuarryDel Norte, CANear Crescent CityMSHA 0405830 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 12/01/2014 | HW3 LLCReported operatorHenry Westbrook IIIReported controller | Production / employmentSafety recordsView source coverage → |
| Lost Hills MinesKern, CAMSHA 0400927 | GypsumSurface | AbandonedStatus date: 01/15/1986 | Fannin-Superior Gypsum Company IncReported operatorBarksdale Bill-Sidney L PayneReported controller | Neither history importedView source coverage → |
| Lot 232 PitAmador, CAMSHA 0403892 | Misc. Nonmetallic Mnls. NECSurface | AbandonedStatus date: 10/10/1979 | Interpace CorpReported operatorJon RhineReported controller | Neither history importedView source coverage → |
| Lotus Pit And MillEl Dorado, CAMSHA 0401844 | Construction Sand and GravelSurface | AbandonedStatus date: 08/09/1982 | Lotus Aggregates IncReported operatorHenningsen NormanReported controller | Neither history importedView source coverage → |
| Lovelady-1San Bernardino, CANear HighlandMSHA 0405513 | Construction Sand and GravelSurface | AbandonedStatus date: 02/28/2011 | Lovelady Trucking & Material IncReported operatorMark T LoveladyReported controller | Production / employmentSafety recordsView source coverage → |
| Lower Emma MineButte, CAMSHA 0405225 | Gold OreUnderground | AbandonedStatus date: 03/08/1996 | Ddmj EnterprisesReported operatorLedbetter G Darrell - Carl PullenReported controller | Neither history importedView source coverage → |
| Lucerne ValleySan Bernardino, CANear Lucerne ValleyMSHA 0405693 | Construction Sand and GravelSurface | AbandonedStatus date: 05/01/2018 | Robertson'sReported operatorRRM Development Corporation; Mitsubishi CorpReported controller | Production / employmentSafety recordsView source coverage → |
| LUCKY 7 PITButte, CANear OrovilleMSHA 0405086 | Construction Sand and GravelSurface | AbandonedStatus date: 06/05/2026 | Branson Enterprise IncReported operatorMatthew James BransonReported controller | Production / employmentSafety recordsView source coverage → |
| Lucky Chance MinePlumas, CAMSHA 0404375 | Gold OreUnderground | AbandonedStatus date: 10/01/1982 | Lucky Chance MineReported operatorRoper VirgilReported controller | Neither history importedView source coverage → |
| Lucky Stars MineTulare, CAMSHA 0404272 | Misc. Nonmetallic Mnls. NECUnderground | AbandonedStatus date: 05/22/1981 | Metaline Industries IncReported operatorMetaline Industries IncReported controller | Neither history importedView source coverage → |
| Lucky StrikeMendocino, CAMSHA 0404751 | Construction Sand and GravelSurface | AbandonedStatus date: 02/14/1986 | Rand Rock CompanyReported operatorRand Rock CompanyReported controller | Neither history importedView source coverage → |
| Lucy B No 3Kern, CAMSHA 0404226 | Tungsten OreUnderground | AbandonedStatus date: 01/29/1981 | P G C S LtdReported operatorOsborn LloydReported controller | Neither history importedView source coverage → |
| LW Hall Co Inc DBA Oak Run QuarryShasta, CANear Oak RunMSHA 0405228 | Common ShaleSurface | AbandonedStatus date: 07/23/2008 | Cobalt CrushingReported operatorLee W HallReported controller | Production / employmentSafety recordsView source coverage → |
| LYNCH PITSan Diego, CAMSHA 0405176 | Crushed, Broken GraniteSurface | AbandonedStatus date: 05/12/1997 | Robert L Lynch TruckingReported operatorLynch Robert LReported controller | Neither history importedView source coverage → |
| Lytle CreekSan Bernardino, CAMSHA 0401886 | Construction Sand and GravelSurface | AbandonedStatus date: 06/16/1993 | Owl Rock ProductsReported operatorMitsubishi CorpReported controller | Neither history importedView source coverage → |
| Lytle CreekSan Bernardino, CAMSHA 0405177 | Construction Sand and GravelSurface | AbandonedStatus date: 11/02/1992 | Osborn Materials & Processing CompanyReported operatorOsborn Materials & Processing CompanyReported controller | Neither history importedView source coverage → |
| Lytle Creek/S-5 ExtecSan Bernardino, CANear RiversideMSHA 0405486 | Construction Sand and GravelSurface | AbandonedStatus date: 12/30/2011 | Barney Northcote IncReported operatorBarney R NorthcoteReported controller | Production / employmentSafety recordsView source coverage → |
| Madison Sand & GravelYolo, CANear MADISONMSHA 0401848 | Construction Sand and GravelSurface | AbandonedStatus date: 04/16/2020 | Syar Industries IncReported operatorJames M SyarReported controller | Production / employmentSafety recordsView source coverage → |
| Main Pit & MillDel Norte, CAMSHA 0401923 | Construction Sand and GravelSurface | AbandonedStatus date: 08/06/1980 | Rellim Redwood CoReported operatorRellim Redwood CoReported controller | Neither history importedView source coverage → |