| Jones Mine #1 (Glover)Garrett, MDNear Near FriendsvilleMSHA 1800692 | Coal (Bituminous)Surface | AbandonedStatus date: 10/02/1992 | Jones Coal IncReported operatorJones Donald FReported controller | Neither history importedView source coverage → |
| Jones Quarry LLCHoward, MDNear WoodstockMSHA 1800586 | Dimension Stone NECSurface | AbandonedStatus date: 08/20/2024 | Jones Quarry LLCReported operatorBrian N HannrahanReported controller | Production / employmentSafety recordsView source coverage → |
| Joppa PlantHarford, MDNear ?MSHA 1800589 | Construction Sand and GravelSurface | AbandonedStatus date: 07/24/1984 | Stancills IncReported operatorPierce FlaniganReported controller | Neither history importedView source coverage → |
| Joppa Road PlantBaltimore, MDMSHA 1800314 | Construction Sand and GravelSurface | AbandonedStatus date: 11/20/1980 | Genstar Stone Products CompanyReported operatorCimenteries Cbr CementbedrijvenReported controller | Neither history importedView source coverage → |
| Joppa Sand & Gravel CorporationHarford, MDNear ?MSHA 1800308 | Construction Sand and GravelSurface | AbandonedStatus date: 12/21/1982 | Joppa Sand & Gravel CorpReported operatorJoppa Sand & Gravel CorpReported controller | Neither history importedView source coverage → |
| Jt #3Garrett, MDNear BloomingtonMSHA 1800684 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 03/13/1985 | Masteller Coal Company IncReported operatorJames T WatsonReported controller | Neither history importedView source coverage → |
| Jt #5 MineGarrett, MDNear SwantonMSHA 1800721 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 04/20/1999 | Masteller Coal CompanyReported operatorWinner Brothers Coal Company IncReported controller | Safety recordsView source coverage → |
| J T No 1Garrett, MDNear SwantonMSHA 1800552 | Coal (Bituminous)Underground | AbandonedStatus date: 10/25/1982 | Masteller Coal Company IncReported operatorJames T WatsonReported controller | Neither history importedView source coverage → |
| Kaiser Plant And MillAllegany, MDMSHA 1800351 | Fire ClayFacility | AbandonedStatus date: 05/21/1982 | Refractories Div Kaiser AluminumReported operatorRefractories Div Kaiser AluminumReported controller | Neither history importedView source coverage → |
| Kelly MineGarrett, MDNear OaklandMSHA 1800770 | Coal (Bituminous)Surface | AbandonedStatus date: 08/31/2018 | WPO, IncReported operatorDebbie S. RoseReported controller | Production / employmentSafety recordsView source coverage → |
| KissnerGarrett, MDNear Friendsville, MdMSHA 1800700 | Coal (Bituminous)Surface | AbandonedStatus date: 11/07/1990 | Jones Mining IncReported operatorJones Donald FReported controller | Neither history importedView source coverage → |
| Knox Dimension Stone QuarryGarrett, MDNear AccidentMSHA 1800759 | Dimension SandstoneSurface | AbandonedStatus date: 12/11/2013 | Garrett County Peat Products LLCReported operatorCarroll O (Jack) Beitzel; Jone E BeitzelReported controller | Production / employmentSafety recordsView source coverage → |
| KoontzAllegany, MDNear FrostburgMSHA 1800696 | Coal (Bituminous)Surface | AbandonedStatus date: 04/01/1985 | Alpha Mining IncReported operatorJenkins Jonathan RReported controller | Neither history importedView source coverage → |
| Koontz MineAllegany, MDNear KlondikeMSHA 1800781 | Coal (Bituminous)Surface | AbandonedStatus date: 08/30/2010 | Heritage Coal & Natural Resources LLCReported operatorKTRV LLCReported controller | Production / employmentSafety recordsView source coverage → |
| Landover Sand CompanyAnne Arundel, MDNear ?MSHA 1800309 | Construction Sand and GravelSurface | AbandonedStatus date: 10/06/1983 | Landover Sand CompanyReported operatorThe Estate Of Frank & Mary BevardReported controller | Neither history importedView source coverage → |
| Laoc Strip #1Garrett, MDNear Deer ParkMSHA 1800756 | Coal (Bituminous)Surface | AbandonedStatus date: 12/05/2017 | Laoc CorporationReported operatorBrenda L ShankReported controller | Production / employmentSafety recordsView source coverage → |
| LaPlata Sand & GravelCharles, MDNear LaPlataMSHA 1800625 | Construction Sand and GravelSurface | AbandonedStatus date: 04/25/2017 | Aggregate IndustriesReported operatorAmrize LtdReported controller | Production / employmentSafety recordsView source coverage → |
| Laurel Operation Prince Georges, MDNear 100MSHA 1800410 | Construction Sand and GravelSurface | AbandonedStatus date: 10/13/2009 | Laurel Sand & Gravel IncReported operatorAggregate Management, IncReported controller | Production / employmentSafety recordsView source coverage → |
| Laurel UgGarrett, MDMSHA 1800173 | Coal (Bituminous)Underground | AbandonedStatus date: 06/28/1971 | Buffalo Coal Company IncReported operatorCarl Del Signore Family TrustReported controller | Neither history importedView source coverage → |
| Leonardtown Sand & GravelSt Marys, MDNear LeonardtownMSHA 1800572 | Construction Sand and GravelSurface | AbandonedStatus date: 05/15/2008 | Vulcan Construction Materials, LPReported operatorVulcan Materials CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| LEONARDTOWN SAND & GRAVEL CO.St Marys, MDNear ?MSHA 1800316 | Construction Sand and GravelSurface | AbandonedStatus date: 02/02/1998 | Chaney Enterprises LpReported operatorChaney Enterprises LPReported controller | Neither history importedView source coverage → |
| LIME CREST PACKAGINGBaltimore, MDMSHA 1800732 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 04/01/1997 | Lime Crest CorpReported operatorPaul G Viall Jr; Gordon A Brandon JrReported controller | Neither history importedView source coverage → |
| LOVE POINT DREDGE & TERMINALQueen Annes, MDNear BaltimoreMSHA 1800632 | Sand, CommonSurface | AbandonedStatus date: 01/08/2007 | Langenfelder Marine, Inc.Reported operatorJames R Matters; David G HowsonReported controller | Production / employmentSafety recordsView source coverage → |
| LT106-002-MarriottsvilleHoward, MDNear MarriotsvilleMSHA 3610018 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 10/21/2016 | Mellott CompanyReported operatorJonathan SchilowitzReported controller | Production / employmentSafety recordsView source coverage → |
| LT200HP-005Cecil, MDNear Elk MillsMSHA 1800797 | Dimension GraniteSurface | AbandonedStatus date: 10/02/2017 | Mellott CompanyReported operatorJonathan SchilowitzReported controller | Production / employmentSafety recordsView source coverage → |
| LT300HP-008Cecil, MDNear North EastMSHA 3610236 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 07/31/2020 | Mellott CompanyReported operatorJonathan SchilowitzReported controller | Production / employmentSafety recordsView source coverage → |
| Lynette No 1Garrett, MDNear SwantonMSHA 1800699 | Coal (Bituminous)Underground | AbandonedStatus date: 08/17/2010 | Walnut Bottom Mining CompanyReported operatorLobb Thomas E & David C BatsonReported controller | Neither history importedView source coverage → |
| Marriottsville QuarryBaltimore, MDNear Marriottsville, MDMSHA 1800010 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 10/21/2016 | Bluegrass Materials Company, LLCReported operatorMartin Marietta Materials IncReported controller | Production / employmentSafety recordsView source coverage → |
| Marriottsville QuarryBaltimore, MDNear MarriottsvilleMSHA 1800784 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 06/23/2014 | Chesapeake Materials (division/Luck Stone Corp.)Reported operatorCharles S Luck IVReported controller | Production / employmentSafety recordsView source coverage → |
| Maryland Lava Co Inc Maryland LavaHarford, MDMSHA 1800358 | TalcFacility | AbandonedStatus date: 05/21/1982 | Maryland Lava CoReported operatorMaryland Lava CoReported controller | Neither history importedView source coverage → |