| Green Haustin WesternMadison, MTMSHA 2401886 | Construction Sand and GravelSurface | AbandonedStatus date: 07/06/1994 | A M Welles IncReported operatorAlfred HokansonReported controller | Neither history importedView source coverage → |
| Greenhorn Gulch PlacerBroadwater, MTMSHA 2401828 | Gold OreSurface | AbandonedStatus date: 08/26/1987 | Global Oil & Gold CompanyReported operatorClayton BillReported controller | Neither history importedView source coverage → |
| Greenhorn MineMadison, MTMSHA 2400943 | TalcSurface | AbandonedStatus date: 02/01/1991 | Southern Talc CompanyReported operatorSued-Chemie AGReported controller | Neither history importedView source coverage → |
| Green Mountain Const Gravel PitMineral, MTNear SuperiorMSHA 2402049 | Construction Sand and GravelSurface | AbandonedStatus date: 01/01/2022 | Green Mountain ConstructionReported operatorRick Miller; Sally MillerReported controller | Production / employmentSafety recordsView source coverage → |
| Grey JockeyBeaverhead, MTMSHA 2401587 | Silver OreUnderground | AbandonedStatus date: 04/13/1982 | Timberline Silver IncReported operatorTimberline Silver IncReported controller | Neither history importedView source coverage → |
| Grizzly ISanders, MTNear PlainsMSHA 2402287 | Dimension Stone NECSurface | AbandonedStatus date: 10/26/2016 | Grizzly StoneReported operatorBen KirschbaumReported controller | Production / employmentSafety recordsView source coverage → |
| Ground Hog Mine & MillBeaverhead, MTMSHA 2401831 | Gold OreSurface | AbandonedStatus date: 07/10/1990 | Bill HandReported operatorHand BillReported controller | Neither history importedView source coverage → |
| ground sourceGranite, MTNear drummondMSHA 2402653 | Gold OreSurface | AbandonedStatus date: 11/14/2013 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Gruber 1Jefferson, MTNear Montana CityMSHA 2402644 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2016 | Gruber Excavating IncReported operatorVicki J GruberReported controller | Production / employmentSafety recordsView source coverage → |
| Grubstake Mine ClaimSanders, MTMSHA 2401651 | Lead-Zinc OreUnderground | AbandonedStatus date: 09/29/1981 | Prospect Creek MiningReported operatorProspect Creek MiningReported controller | Neither history importedView source coverage → |
| Grubstake Or Grubstake Mine & MillMadison, MTMSHA 2401588 | Gold OreUnderground | AbandonedStatus date: 04/23/1984 | Resources America IncReported operatorVan Zyl BernardReported controller | Neither history importedView source coverage → |
| Gull Lumber Co (Screening Plant)Mineral, MTNear LozeauMSHA 2402215 | Construction Sand and GravelSurface | AbandonedStatus date: 10/29/2019 | Donald Gull Lumber Co (Screening Plant)Reported operatorDon GullReported controller | Production / employmentSafety recordsView source coverage → |
| GULT PITBeaverhead, MTMSHA 2402125 | Construction Sand and GravelSurface | AbandonedStatus date: 01/04/1999 | Right Way ConstructionReported operatorMussard ChadReported controller | Neither history importedView source coverage → |
| Gunderson PitFallon, MTMSHA 2400865 | PumiceSurface | AbandonedStatus date: 01/18/1979 | Zion ConstructionReported operatorZion James WReported controller | Neither history importedView source coverage → |
| GustafsonRichland, MTNear CulbertsonMSHA 2402675 | Construction Sand and GravelSurface | AbandonedStatus date: 12/06/2017 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Haley MineLewis And Clark, MTMSHA 2401493 | Gold OreUnderground | AbandonedStatus date: 07/16/1984 | Haley Mine CompanyReported operatorLittle Guy R-Lynn FReported controller | Neither history importedView source coverage → |
| Harden PitLiberty, MTMSHA 2401463 | Construction Sand and GravelSurface | AbandonedStatus date: 09/11/1991 | Harden Brothers ConstructionReported operatorHarden Earl & CliffordReported controller | Neither history importedView source coverage → |
| HARDING READY MIXFlathead, MTNear Big forkMSHA 2401970 | Construction Sand and GravelSurface | AbandonedStatus date: 10/22/2002 | Harding Ready Mix IncReported operatorW Greg HardingReported controller | Production / employmentSafety recordsView source coverage → |
| Harper Sand & Gravel Pit #4Glacier, MTNear WillistonMSHA 4201522 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/2012 | Harper Sand & Gravel IncReported operatorHarper Investments IncReported controller | Neither history importedView source coverage → |
| Harris Sand & GravelRavalli, MTNear VictorMSHA 2402367 | Construction Sand and GravelSurface | AbandonedStatus date: 05/16/2025 | Harris Enterprises LLPReported operatorDonald J Harris; Donald L HarrisReported controller | Production / employmentSafety recordsView source coverage → |
| Hartl Mini Track 503 Rock CrusherSilver Bow, MTNear ButteMSHA 2402407 | Construction Sand and GravelSurface | AbandonedStatus date: 07/23/2020 | Smith Contracting Inc.Reported operatorDavid A SmithReported controller | Production / employmentSafety recordsView source coverage → |
| Hassel 4611Broadwater, MTMSHA 2401875 | Gold OreSurface | AbandonedStatus date: 09/22/1988 | John Wright & Alan WrightReported operatorJohn Wright & Alan WrightReported controller | Neither history importedView source coverage → |
| Hassel MineBroadwater, MTMSHA 2401502 | Gold OreSurface | AbandonedStatus date: 04/13/1987 | Ira LeeReported operatorLee IraReported controller | Neither history importedView source coverage → |
| Hathaway MineCuster, MTNear HathawayMSHA 2401511 | Coal (Bituminous)Surface | Abandoned and SealedStatus date: 02/19/1986 | Hathaway Coal CompanyReported operatorAvalos GeorgeReported controller | Neither history importedView source coverage → |
| HATHAWAY PITSweet Grass, MTNear Big TimberMSHA 2402180 | Construction Sand and GravelSurface | AbandonedStatus date: 04/12/2006 | Shenandoah Rock ProductsReported operatorShannon Cole SandyReported controller | Production / employmentSafety recordsView source coverage → |
| Havre Sand & Gravel & PlantHill, MTNear HarveMSHA 2400467 | Construction Sand and GravelSurface | AbandonedStatus date: 07/11/2003 | Havre Sand & Gravel IncReported operatorCharles Emile OttoReported controller | Production / employmentSafety recordsView source coverage → |
| HawkeyeJefferson, MTMSHA 2401637 | Gold OreUnderground | AbandonedStatus date: 09/01/1983 | Lynn Mine & Mining IncReported operatorLynn Mine & Mining IncReported controller | Neither history importedView source coverage → |
| HEARY CR.Sanders, MTNear naMSHA 2402244 | Dimension Stone NECSurface | AbandonedStatus date: 06/18/2003 | Mountain West StoneReported operatorRoy AcordReported controller | Production / employmentSafety recordsView source coverage → |
| Heath MillFergus, MTMSHA 2400145 | Gold OreUnderground | AbandonedStatus date: 06/22/1992 | Blue Range Mining Company L PReported operatorDelaware Ventures & L C HoffmanReported controller | Neither history importedView source coverage → |
| Heath QuarrySanders, MTNear PermaMSHA 2402309 | Dimension MicaSurface | AbandonedStatus date: 07/28/2003 | D J StoneReported operatorDylan JosephsonReported controller | Neither history importedView source coverage → |