| Monessen DockWestmoreland, PANear Belle VernonMSHA 3606359 | Coal (Bituminous)Facility | AbandonedStatus date: 05/31/1985 | Duquesne Slag Products CompanyReported operatorStandard Slag CompanyReported controller | Neither history importedView source coverage → |
| Monongahela Resource MineGreene, PANear WaynesburgMSHA 3608336 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 06/13/1996 | Cyprus River Processing CorpReported operatorCyprus Amax Minerals CompanyReported controller | Neither history importedView source coverage → |
| Mon River DockGreene, PANear 8FredericktownMSHA 3605050 | Coal (Bituminous)Facility | AbandonedStatus date: 02/26/2008 | Mon River Dock CompanyReported operatorThomas M BoyleReported controller | Production / employmentSafety recordsView source coverage → |
| Montel StoneSusquehanna, PANear WinsorMSHA 3003732 | Dimension Stone NECSurface | AbandonedStatus date: 07/01/2011 | A.T.C. Natural StoneReported operatorJorge Armando Tobon CruzReported controller | Production / employmentSafety recordsView source coverage → |
| Montgomery StoneMontgomery, PANear ?MSHA 3600173 | Crushed, Broken TraprockSurface | AbandonedStatus date: 06/30/1992 | Glasgow IncReported operatorGlasgow IncReported controller | Neither history importedView source coverage → |
| Montmorenci JobElk, PANear RidgewayMSHA 3609986 | Crushed, Broken SandstoneSurface | AbandonedStatus date: 04/20/2017 | North Star Aggregates Inc.Reported operatorRaymond J Buhler; Edward BuhlerReported controller | Production / employmentSafety recordsView source coverage → |
| Montour #10Allegheny, PANear LibraryMSHA 3602556 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 04/14/1980 | Consolidation Coal CompanyReported operatorRobert E MurrayReported controller | Neither history importedView source coverage → |
| Montour #4Washington, PANear LawrenceMSHA 3600966 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 08/01/1983 | Consolidation Coal CompanyReported operatorRobert E MurrayReported controller | Neither history importedView source coverage → |
| Montour Strip MineWashington, PAMSHA 3603545 | Coal (Bituminous)Surface | AbandonedStatus date: 03/26/1973 | Aloe Coal CompanyReported operatorAloe Coal CompanyReported controller | Neither history importedView source coverage → |
| Montrose CrusherSusquehanna, PANear MontroseMSHA 3610160 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 06/29/2023 | E.R. Linde ConstructionReported operatorEric LindeReported controller | Production / employmentSafety recordsView source coverage → |
| Montrose QuarrySusquehanna, PANear MontroseMSHA 3608076 | Dimension Stone NECSurface | AbandonedStatus date: 09/09/2020 | Pennsy Supply IncReported operatorCRH PLCReported controller | Production / employmentSafety recordsView source coverage → |
| Monument PitClinton, PANear ?MSHA 3605540 | Common Clays NECSurface | AbandonedStatus date: 09/26/1986 | Fink & Stackhouse IncReported operatorStackhouse Robert LReported controller | Neither history importedView source coverage → |
| Monvalley Transportation Center IncAllegheny, PANear GlassportMSHA 3608678 | Coal (Bituminous)Facility | AbandonedStatus date: 04/17/2009 | Mon Valley Transportation Center IncReported operatorRobert E MurrayReported controller | Production / employmentSafety recordsView source coverage → |
| Moon Run MineAllegheny, PANear 82 Petrie Rd CoriopolisMSHA 3607626 | Coal (Bituminous)Surface | AbandonedStatus date: 06/15/1988 | William J KisowReported operatorKisow William JReported controller | Neither history importedView source coverage → |
| MooreSomerset, PANear AcostaMSHA 3601475 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 10/11/1985 | Maranatha Coal ConstructionReported operatorCunningham RichardReported controller | Neither history importedView source coverage → |
| MooreWestmoreland, PANear WhitneyMSHA 3604027 | Coal (Bituminous)Underground | AbandonedStatus date: 05/18/1983 | Moremet Coal Company IncReported operatorJamison DavidReported controller | Neither history importedView source coverage → |
| Moore MineJefferson, PANear PunxsutawneyMSHA 3602755 | Coal (Bituminous)Surface | AbandonedStatus date: 07/23/1996 | Colt Resources IncReported operatorApex Oil CompanyReported controller | Neither history importedView source coverage → |
| Moore No 1 SlopeNorthumberland, PAMSHA 3602638 | Coal (Anthracite)Underground | AbandonedStatus date: 06/28/1971 | Moore Brothers Coal CompanyReported operatorMoore William W JrReported controller | Neither history importedView source coverage → |
| Moore StripSomerset, PANear AcostaMSHA 3606304 | Coal (Bituminous)Surface | AbandonedStatus date: 03/24/1982 | Drummond Coal Company IncReported operatorDrummond RichardReported controller | Neither history importedView source coverage → |
| Moore StripSomerset, PAMSHA 3606851 | Coal (Bituminous)Surface | AbandonedStatus date: 06/01/1979 | Corsair Mining IncReported operatorMeehan John EReported controller | Neither history importedView source coverage → |
| Moore Strip MineClarion, PANear CurllsvilleMSHA 3607185 | Coal (Bituminous)Surface | AbandonedStatus date: 09/10/1984 | Strishock Coal CompanyReported operatorMark E Strishock; Stephen A StrishockReported controller | Neither history importedView source coverage → |
| Moose Run UgClearfield, PAMSHA 3600877 | Coal (Bituminous)Underground | AbandonedStatus date: 03/06/1972 | Glen Irvan CorpReported operatorStoker IrvanReported controller | Neither history importedView source coverage → |
| Moosic BreakerLackawanna, PANear MoosicMSHA 3601693 | Coal (Anthracite)Facility | AbandonedStatus date: 12/22/1987 | Moosic Coal CompanyReported operatorGiarratano Anthony CReported controller | Neither history importedView source coverage → |
| Morann StripClearfield, PAMSHA 3605414 | Coal (Bituminous)Surface | AbandonedStatus date: 09/26/1977 | Monarf IncReported operatorMyers Don RReported controller | Neither history importedView source coverage → |
| Morea Cleaning PlantSchuylkill, PAMSHA 3602177 | Coal (Anthracite)Facility | AbandonedStatus date: 04/17/1972 | Jeddo-Highland Coal CompanyReported operatorPagnotti Enterprises IncReported controller | Neither history importedView source coverage → |
| Morea/New Boston And SkytopSchuylkill, PANear MoreaMSHA 3608035 | Coal (Anthracite)Facility | AbandonedStatus date: 09/10/1990 | Jeddo-Highland Coal CompanyReported operatorPagnotti Enterprises IncReported controller | Neither history importedView source coverage → |
| Morea New Boston OperationSchuylkill, PANear New BostonMSHA 3610206 | Coal (Anthracite)Surface | AbandonedStatus date: 02/09/2026 | Pagnotti Enterprises, Inc.Reported operatorBrynfa Associates; Tedesco Corp; Louis Pagnotti IncReported controller | Safety recordsView source coverage → |
| Morea Refuse Removal OperationSchuylkill, PANear Morea Mahanoy Twp.MSHA 3608250 | Coal (Anthracite)Facility | AbandonedStatus date: 10/10/2019 | Wheelabrator Culm Services IncorporatedReported operatorWaste Management IncReported controller | Production / employmentSafety recordsView source coverage → |
| Moreau StripIndiana, PAMSHA 3605992 | Coal (Bituminous)Surface | AbandonedStatus date: 10/01/1979 | A F Moreau & Sons IncReported operatorMoreau Donald FReported controller | Neither history importedView source coverage → |
| Morgan Drift MineSchuylkill, PANear Valley ViewMSHA 3601997 | Coal (Anthracite)Underground | Abandoned and SealedStatus date: 03/01/1984 | Hard & Shiney Coal Company IncReported operatorHarman John EReported controller | Neither history importedView source coverage → |