| McGregor Peak Boulder PatchFlathead, MTNear MarionMSHA 2402377 | Construction Sand and GravelSurface | AbandonedStatus date: 06/27/2006 | Stanton Stone Supply IncReported operatorRonald R StantonReported controller | Production / employmentView source coverage → |
| Mcintyre Portable Crusher No 1Cascade, MTMSHA 2401405 | Construction Sand and GravelSurface | AbandonedStatus date: 07/17/1985 | Mc Intyre Construction CompanyReported operatorRobert B McIntyreReported controller | Neither history importedView source coverage → |
| Mc Intyre Portable Crusher No 2Pondera, MTMSHA 2401471 | Construction Sand and GravelSurface | AbandonedStatus date: 07/18/1985 | Mc Intyre Construction CompanyReported operatorRobert B McIntyreReported controller | Neither history importedView source coverage → |
| MC IVERCascade, MTMSHA 2402046 | Construction Sand and GravelSurface | AbandonedStatus date: 07/10/2000 | Great Falls Sand & GravelReported operatorLee JanetskiReported controller | Production / employmentSafety recordsView source coverage → |
| McLaughlin Site/Other Sanders, MTNear ParadiseMSHA 2402229 | Dimension Stone NECSurface | AbandonedStatus date: 09/22/2016 | Rock Solid Inc.Reported operatorBridger BischoffReported controller | Production / employmentSafety recordsView source coverage → |
| Mc Quarrie QuarryMissoula, MTMSHA 2400482 | Dimension Stone NECSurface | AbandonedStatus date: 05/12/1995 | Meridian Aggregates CompanyReported operatorMeridian Aggregates Company LPReported controller | Neither history importedView source coverage → |
| MDG Portable 1Gallatin, MTNear BozemanMSHA 2402674 | Gold OreSurface | AbandonedStatus date: 07/20/2015 | Minerals Development Group LLCReported operatorJohn Frazer Childs; Donald Fess FosterReported controller | Production / employmentView source coverage → |
| Meadow MineJefferson, MTMSHA 2400573 | Silver OreUnderground | AbandonedStatus date: 01/11/1979 | Meadowlark Mining Company IncReported operatorMeadowlark Mining Company IncReported controller | Neither history importedView source coverage → |
| Medallion PortableSilver Bow, MTMSHA 2401440 | Construction Sand and GravelSurface | AbandonedStatus date: 07/23/1986 | Medallion Minerals IncReported operatorMedallion Minerals IncReported controller | Neither history importedView source coverage → |
| MEDICINE LAKE PITSheridan, MTMSHA 2401396 | Construction Sand and GravelSurface | AbandonedStatus date: 09/11/2001 | Prairie Sand & Gravel IncReported operatorKen TorgersonReported controller | Production / employmentSafety recordsView source coverage → |
| Medina PitYellowstone, MTNear BelgradeMSHA 2402266 | Construction Sand and GravelSurface | AbandonedStatus date: 04/16/2006 | Concrete Materials of Montana LLCReported operatorGregory LuchtReported controller | Production / employmentSafety recordsView source coverage → |
| Mehling PitCarter, MTNear BakerMSHA 2402438 | Construction Sand and GravelSurface | AbandonedStatus date: 04/11/2013 | Mitchells Oilfield Service Redi-Mix DivisionReported operatorTodd Appel; Patrick SameulsonReported controller | Production / employmentSafety recordsView source coverage → |
| Mehling PitBig Horn, MTNear HardinMSHA 2402579 | Construction Sand and GravelSurface | AbandonedStatus date: 11/13/2013 | Warrens Transportation & Brokerage LLCReported operatorJon W Cayton; Denise CoteReported controller | Production / employmentSafety recordsView source coverage → |
| M.E. Inc.Flathead, MTNear MarionMSHA 2402464 | Construction Sand and GravelSurface | AbandonedStatus date: 07/28/2022 | Murphy's Excavating Inc.Reported operatorDennis M WagarReported controller | Production / employmentSafety recordsView source coverage → |
| MelicharFergus, MTNear MooreMSHA 2402617 | Construction Sand and GravelSurface | AbandonedStatus date: 08/09/2012 | RT LoggingReported operatorRandy ThompsonReported controller | Neither history importedView source coverage → |
| Melville Ready Mix Sand & GravelBig Horn, MTNear HardenMSHA 2400453 | Construction Sand and GravelSurface | AbandonedStatus date: 10/05/2016 | Melville Ready Mix Sand & GravelReported operatorArthur L MelvilleReported controller | Production / employmentSafety recordsView source coverage → |
| Menth ExcavatingLewis And Clark, MTNear East HelenaMSHA 2402327 | Construction Sand and GravelSurface | AbandonedStatus date: 07/01/2005 | Menth Excavating Inc.Reported operatorLenore MenthReported controller | Production / employmentSafety recordsView source coverage → |
| Merriman QuarryPark, MTMSHA 2402138 | Dimension TraprockSurface | AbandonedStatus date: 10/19/1998 | Merriman Quarry LLC Reported operatorBo FanuzziReported controller | Production / employmentView source coverage → |
| Metso CrusherYellowstone, MTNear BillingsMSHA 2402442 | Construction Sand and GravelSurface | AbandonedStatus date: 06/10/2013 | C&S Construction, Inc.Reported operatorEstate of Clint StovallReported controller | Production / employmentSafety recordsView source coverage → |
| Metso Mobile ScreenFergus, MTNear LewistownMSHA 2402712 | Construction Sand and GravelSurface | AbandonedStatus date: 10/29/2019 | M.A. DeAtley ConstructionReported operatorMark DeAtley; Dusty ForsmannReported controller | Production / employmentSafety recordsView source coverage → |
| Metso ScreenSilver Bow, MTNear ButteMSHA 2402336 | Construction Sand and GravelSurface | AbandonedStatus date: 10/29/2019 | Smith Contracting IncReported operatorDavid A SmithReported controller | Production / employmentSafety recordsView source coverage → |
| Meyer Construction Crusher #1Yellowstone, MTMSHA 2401279 | Construction Sand and GravelSurface | AbandonedStatus date: 10/16/1986 | Meyer Construction CompanyReported operatorMcCormick IncReported controller | Neither history importedView source coverage → |
| Mickelson Rock ProductsMissoula, MTNear MissoulaMSHA 2402341 | Construction Sand and GravelSurface | AbandonedStatus date: 12/03/2018 | Mickelson Rock Products LLCReported operatorBrent Mickelson; Mike MickelsonReported controller | Production / employmentSafety recordsView source coverage → |
| Mikesell Mobile CrusherMeagher, MTMSHA 2401475 | Construction Sand and GravelSurface | AbandonedStatus date: 08/28/1991 | Mikesell Sales & Service IncReported operatorBryan L MikesellReported controller | Neither history importedView source coverage → |
| Mile High Placer GroupBroadwater, MTMSHA 2401904 | Gold OreSurface | AbandonedStatus date: 02/14/1996 | Mile High PlacerReported operatorMile High PlacerReported controller | Neither history importedView source coverage → |
| Mill Creek PitPark, MTMSHA 2400807 | Construction Sand and GravelSurface | AbandonedStatus date: 09/05/1979 | Eggar Construction CompanyReported operatorJack EggarReported controller | Neither history importedView source coverage → |
| Miller Creek Rock PermitSanders, MTNear PlainsMSHA 2402479 | Dimension Stone NECSurface | AbandonedStatus date: 10/30/2019 | Joe BacheReported operatorJoe E BacheReported controller | Production / employmentSafety recordsView source coverage → |
| Miller MineBroadwater, MTNear TownsendMSHA 2402743 | Gold OreSurface | AbandonedStatus date: 10/29/2019 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Miller Mt Mine & MillBroadwater, MTMSHA 2401609 | Gold OreUnderground | AbandonedStatus date: 04/20/1988 | Global Oil & Gold CompanyReported operatorClayton BillReported controller | Neither history importedView source coverage → |
| Miller TunnelMadison, MTMSHA 2401688 | Gold OreUnderground | AbandonedStatus date: 11/24/1983 | Cumberland Mining CorpReported operatorCumberland Resources IncReported controller | Neither history importedView source coverage → |