| Mammoth Middle Split SlopeSchuylkill, PANear BranchdaleMSHA 3606125 | Coal (Anthracite)Underground | Abandoned and SealedStatus date: 09/02/1980 | E & S Coal CompanyReported operatorPogirski Edward & StanleyReported controller | Neither history importedView source coverage → |
| Mammoth MineSchuylkill, PANear Silver CreekMSHA 3608710 | Coal (Anthracite)Underground | Abandoned and SealedStatus date: 02/02/1998 | Triple T Mining Company L PReported operatorWaldermar T Fetterolf JrReported controller | Neither history importedView source coverage → |
| Mammoth Mining CompanyWestmoreland, PANear MammothMSHA 3607578 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 09/18/1987 | Mammoth Mining CompanyReported operatorBaker Brandan GReported controller | Neither history importedView source coverage → |
| Mammoth SlopeSchuylkill, PANear LlewellynMSHA 3602049 | Coal (Anthracite)Underground | Abandoned and SealedStatus date: 01/14/1986 | Woratyla Coal Company IncReported operatorWoratyla AndrewReported controller | Neither history importedView source coverage → |
| Mammoth SlopeSchuylkill, PANear TremontMSHA 3610062 | Coal (Anthracite)Underground | AbandonedStatus date: 03/28/2017 | Blackwood MiningReported operatorCharles CressReported controller | Production / employmentView source coverage → |
| Mammoth StripSchuylkill, PANear BranchdaleMSHA 3602025 | Coal (Anthracite)Surface | AbandonedStatus date: 08/03/1984 | W & W Construction CompanyReported operatorWalacavage JosephReported controller | Neither history importedView source coverage → |
| Mammoth StrippingSchuylkill, PAMSHA 3603288 | Coal (Anthracite)Surface | AbandonedStatus date: 01/26/1973 | Blue Bell EnterprisesReported operatorButcavage John WReported controller | Neither history importedView source coverage → |
| Mammoth StrippingSchuylkill, PANear LlewellynMSHA 3603320 | Coal (Anthracite)Surface | AbandonedStatus date: 08/03/1984 | Warren Troup Mining CompanyReported operatorTroup Warren CReported controller | Neither history importedView source coverage → |
| M And C StripsArmstrong, PANear SheaMSHA 3606668 | Coal (Bituminous)Surface | AbandonedStatus date: 09/10/1984 | M & C Coal CompanyReported operatorArmitage Edwin B & C A Mc DermottReported controller | Neither history importedView source coverage → |
| M And R SlopeNorthumberland, PANear TrevortonMSHA 3605495 | Coal (Anthracite)Underground | Abandoned and SealedStatus date: 06/26/1996 | S B M CoalReported operatorAlfred J BrownReported controller | Neither history importedView source coverage → |
| ManeyClearfield, PANear FrenchvilleMSHA 3606762 | Coal (Bituminous)Surface | AbandonedStatus date: 02/15/1989 | R L Maney Coal CompanyReported operatorManey Richard LReported controller | Neither history importedView source coverage → |
| Manion No 1 MineSomerset, PAMSHA 3601493 | Coal (Bituminous)Underground | AbandonedStatus date: 08/08/1978 | Manion Coal Company IncReported operatorHolsopple Don BReported controller | Neither history importedView source coverage → |
| Mannion MineArmstrong, PANear KittanningMSHA 3609589 | Coal (Bituminous)Surface | AbandonedStatus date: 07/19/2018 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Manor #1Indiana, PANear Homer CityMSHA 3603312 | Coal (Bituminous)Surface | AbandonedStatus date: 09/29/1989 | Old Home Manor IncReported operatorGlobal EnergyReported controller | Neither history importedView source coverage → |
| Manor #2Westmoreland, PANear WilpenMSHA 3604808 | Coal (Bituminous)Surface | AbandonedStatus date: 12/29/1995 | Old Home Manor IncReported operatorGlobal EnergyReported controller | Neither history importedView source coverage → |
| Manor #4Indiana, PANear Brush ValleyMSHA 3605686 | Coal (Bituminous)Underground | AbandonedStatus date: 10/01/1992 | Manor Mines IncReported operatorGlobal EnergyReported controller | Neither history importedView source coverage → |
| Manor #44 MineClearfield, PANear Bald HillMSHA 3601226 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 03/02/2004 | Manor Mining & Contracting CorpReported operatorC Alan WalkerReported controller | Production / employmentSafety recordsView source coverage → |
| Manor Coal CoClarion, PANear ClarionMSHA 3606457 | Coal (Bituminous)Facility | AbandonedStatus date: 08/07/2002 | Manor Coal CompanyReported operatorRobert H McKay; Robert G Groft SrReported controller | Production / employmentSafety recordsView source coverage → |
| MANOR MINERALS QUARRY & MILLArmstrong, PAMSHA 3600147 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 06/05/2001 | Manor Minerals IncReported operatorJames W WhiteReported controller | Production / employmentSafety recordsView source coverage → |
| Manor No 7 StripJefferson, PAMSHA 3605044 | Coal (Bituminous)Surface | AbandonedStatus date: 10/01/1979 | Old Home Manor IncReported operatorGlobal EnergyReported controller | Neither history importedView source coverage → |
| Manor StripWestmoreland, PANear South GreensburgMSHA 3607613 | Coal (Bituminous)Surface | AbandonedStatus date: 07/08/1985 | Mineral Resources IncReported operatorMuchnok Daniel CReported controller | Neither history importedView source coverage → |
| Maple CreekWashington, PANear BentleyvilleMSHA 3600970 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 02/08/2006 | Maple Creek Mining IncorporatedReported operatorRobert E MurrayReported controller | Production / employmentSafety recordsView source coverage → |
| Maple Creek No 2 MineWashington, PANear New EagleMSHA 3603425 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 01/01/1986 | United States Steel Mining Company IncReported operatorUsx CorpReported controller | Neither history importedView source coverage → |
| Maple Hill Cleaner PlantSchuylkill, PAMSHA 3602238 | Coal (Anthracite)Facility | AbandonedStatus date: 06/14/1976 | Reading Anthracite CompanyReported operatorMaria Cantwell; Bonnie R Ryan; Brian R RichReported controller | Neither history importedView source coverage → |
| Maple Spring BreakerSchuylkill, PANear Branch DaleMSHA 3601806 | Coal (Anthracite)Facility | AbandonedStatus date: 10/05/1992 | C L S Coal CorpReported operatorAnthony Blaschak JrReported controller | Neither history importedView source coverage → |
| Mar & CoFayette, PANear Star JunctionMSHA 3606321 | Coal (Bituminous)Facility | Abandoned and SealedStatus date: 02/01/1984 | A & M Commodities IncReported operatorAdams John VReported controller | Neither history importedView source coverage → |
| Marco GFCC ProjectWestmoreland, PANear ApolloMSHA 3609337 | Coal (Bituminous)Surface | AbandonedStatus date: 07/20/2018 | Bedrock Mines LPReported operatorTarge Energy LLCReported controller | Production / employmentSafety recordsView source coverage → |
| Marco Loading DockFayette, PANear Point MarionMSHA 3604305 | Coal (Bituminous)Facility | AbandonedStatus date: 11/22/1985 | Marco Mining CorpReported operatorRuane Maurice JReported controller | Neither history importedView source coverage → |
| Marco Strip Mine-103-12Lawrence, PAMSHA 3603537 | Coal (Bituminous)Surface | AbandonedStatus date: 04/19/1972 | Ambrosia Coal & Construction CompanyReported operatorAmbrosia RoseReported controller | Neither history importedView source coverage → |
| Marcy #1 Stripping And BankLuzerne, PAMSHA 3606560 | Coal (Anthracite)Surface | AbandonedStatus date: 01/08/1981 | Jerome & Lois Romanski Coal CompanyReported operatorRomanski Jerome & LoisReported controller | Neither history importedView source coverage → |