| Bank Run MinesPowell, MTMSHA 2401999 | Gold OreSurface | AbandonedStatus date: 09/13/1993 | T & B Mining IncReported operatorTimothy W WareReported controller | Neither history importedView source coverage → |
| Bannack MineGranite, MTNear PhilipsburgMSHA 2402342 | Construction Sand and GravelSurface | AbandonedStatus date: 07/20/2015 | Excelsior Mining LlcReported operatorPaul AntonioliReported controller | Production / employmentSafety recordsView source coverage → |
| Bannack Placer #1Beaverhead, MTMSHA 2401788 | Gold OreSurface | AbandonedStatus date: 08/01/1989 | RltcoReported operatorRltcoReported controller | Neither history importedView source coverage → |
| Bar ZFlathead, MTNear MarionMSHA 2402324 | Construction Sand and GravelSurface | AbandonedStatus date: 08/26/2003 | Montana Rock Works, LLPReported operatorBrad Mercord; Bill CarterReported controller | Production / employmentView source coverage → |
| Bar ZFlathead, MTNear KalispellMSHA 2402669 | Construction Sand and GravelSurface | AbandonedStatus date: 08/22/2014 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Basin Angus Ranch PitJudith Basin, MTNear HobsonMSHA 2402429 | Construction Sand and GravelSurface | AbandonedStatus date: 06/15/2006 | Phillips ConstructionReported operatorPatricia PhillipsReported controller | Production / employmentView source coverage → |
| Basin Creek MineLewis And Clark, MTMSHA 2401850 | Gold OreSurface | AbandonedStatus date: 04/03/1995 | Basin Creek Mining IncReported operatorApollo Gold CorporationReported controller | Neither history importedView source coverage → |
| Basin MillJefferson, MTMSHA 2401401 | Gold OreFacility | AbandonedStatus date: 01/22/1990 | Intermountain Mineral Engineers IncReported operatorRice Robert AReported controller | Neither history importedView source coverage → |
| Basin QuarryJefferson, MTMSHA 2400058 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 03/19/1985 | Pacific Silica CompanyReported operatorHemphill Brothers IncReported controller | Neither history importedView source coverage → |
| Batch Plant -001Lincoln, MTNear FortineMSHA 2402775 | Sand, CommonSurface | AbandonedStatus date: 05/12/2022 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Bauer Slate & StoneSanders, MTNear PlainsMSHA 2402379 | Dimension Stone NECSurface | AbandonedStatus date: 09/13/2013 | Bauer Slate & StoneReported operatorKirk D BauerReported controller | Production / employmentSafety recordsView source coverage → |
| Bay ChiefSanders, MTMSHA 2401515 | Silver OreUnderground | AbandonedStatus date: 07/23/1981 | United States Antimony CorpReported operatorState Street CorporationReported controller | Neither history importedView source coverage → |
| Bay Materials CrusherToole, MTNear ShelbyMSHA 2402221 | Construction Sand and GravelSurface | AbandonedStatus date: 02/24/2017 | Bay Materials LLCReported operatorBrian MidboeReported controller | Production / employmentSafety recordsView source coverage → |
| Bay Materials Plant 002Richland, MTNear ShelbyMSHA 2402585 | Construction Sand and GravelSurface | AbandonedStatus date: 08/22/2012 | Bay Materials, LLCReported operatorBrian MidboeReported controller | Production / employmentView source coverage → |
| BEAL MOUNTIAN MINESilver Bow, MTMSHA 2401642 | Gold OreSurface | AbandonedStatus date: 01/04/2001 | Beal Mountain Mining IncReported operatorApollo Gold CorporationReported controller | Production / employmentSafety recordsView source coverage → |
| Beaman PlacerMadison, MTMSHA 2401552 | Gold OreSurface | AbandonedStatus date: 07/17/1984 | Beaman International IncReported operatorCollins M CReported controller | Neither history importedView source coverage → |
| Bear CreekGranite, MTNear DrummondMSHA 2402676 | Gold OreSurface | AbandonedStatus date: 09/03/2015 | Star Minerals Group US LLCReported operatorStar Minerals Group LTDReported controller | Production / employmentSafety recordsView source coverage → |
| Bear Creek PlacerGranite, MTNear DrummondMSHA 2402573 | Gold OreSurface | AbandonedStatus date: 11/13/2024 | Bear Creek Placer LLCReported operatorLes (Eugene) L Towner; Rob TownerReported controller | Production / employmentSafety recordsView source coverage → |
| Bear Mountain QuarrySanders, MTNear PlainsMSHA 2402489 | Dimension Stone NECSurface | AbandonedStatus date: 11/26/2007 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Beaver AmericanLewis And Clark, MTMSHA 2401444 | Gold OreSurface | AbandonedStatus date: 11/10/1981 | Majic GemsReported operatorMajic GemsReported controller | Neither history importedView source coverage → |
| Beaver Creek PitSanders, MTMSHA 2401565 | Gold OreSurface | AbandonedStatus date: 08/18/1982 | Sanders County CommissionersReported operatorSanders County - MTReported controller | Neither history importedView source coverage → |
| Beaverhead MineMadison, MTMSHA 2400161 | TalcSurface | AbandonedStatus date: 10/02/1986 | Luzenac America, Inc.Reported operatorImerys S AReported controller | Neither history importedView source coverage → |
| BEAVERHEAD MINEMadison, MTMSHA 2401822 | TalcUnderground | AbandonedStatus date: 05/04/1999 | Luzenac America, Inc.Reported operatorImerys S AReported controller | Production / employmentView source coverage → |
| Belle MineMadison, MTMSHA 2401644 | Gold OreUnderground | AbandonedStatus date: 08/06/1982 | Hanford SilverReported operatorHanford SilverReported controller | Neither history importedView source coverage → |
| Belle MineCarter, MTMSHA 2401775 | Common Clays NECSurface | AbandonedStatus date: 08/15/1988 | American Colloid Company Minerals GroupReported operatorMinerals Technologies IncReported controller | Neither history importedView source coverage → |
| Belmont MineLewis And Clark, MTMSHA 2401665 | Gold OreUnderground | AbandonedStatus date: 07/18/1994 | Prometheus Gold IncReported operatorKrause KristinReported controller | Neither history importedView source coverage → |
| Belzer PitValley, MTNear GlasgowMSHA 2400420 | Construction Sand and GravelSurface | AbandonedStatus date: 01/01/2017 | Fossum Ready MixReported operatorSteve Fossum; Scott Fossum; Carol FossumReported controller | Production / employmentSafety recordsView source coverage → |
| Bentonite Mine & PlantRosebud, MTMSHA 2400082 | Common Clays NECSurface | AbandonedStatus date: 06/13/1978 | Hallett Minerals CompanyReported operatorHallett Construction CompanyReported controller | Neither history importedView source coverage → |
| Bessie & Golden WaveMadison, MTMSHA 2401733 | Gold OreUnderground | AbandonedStatus date: 05/10/1984 | W G ForbesReported operatorForbes W GReported controller | Neither history importedView source coverage → |
| B & H Pete And JoeMadison, MTMSHA 2401519 | Gold OreUnderground | AbandonedStatus date: 08/22/1985 | Winchester Gold CorpReported operatorFields Gary NReported controller | Neither history importedView source coverage → |